---
product_id: 404801862
title: "Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz."
brand: "zak designs"
price: "258 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/404801862-zak-designs-baby-shark-kelso-tumbler-set-leak-proof-screw
store_origin: RO
region: Romania
---

# Leak-proof valve straw Reusable & eco-friendly BPA-free durable materials Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz.

**Brand:** zak designs
**Price:** 258 Lei
**Availability:** ✅ In Stock

## Summary

> 🦈 Sip smart, spill less — hydration just got a Baby Shark upgrade!

## Quick Answers

- **What is this?** Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz. by zak designs
- **How much does it cost?** 258 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/404801862-zak-designs-baby-shark-kelso-tumbler-set-leak-proof-screw)

## Best For

- zak designs enthusiasts

## Why This Product

- Trusted zak designs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Chic Hydration:** Reusable tumblers reduce waste and elevate your child’s daily drink routine with style.
- • **Travel-Ready Design:** Screw-on lids and compact sizes make these tumblers ideal for car rides, daycare, or home use.
- • **Kid-Approved Comfort:** Soft silicone straws designed for easy sipping and gentle on little mouths.
- • **Spill-Proof Confidence:** Leak-proof silicone valve straws keep messes at bay, perfect for busy parents and on-the-go kids.
- • **Dual-Material Durability:** Combines lightweight plastic and insulated stainless steel for versatile, long-lasting use.

## Overview

The Zak Designs Baby Shark Kelso Tumbler Set includes two BPA-free tumblers—one 15 oz plastic and one 12 oz double-wall stainless steel—plus a bonus sipper with leak-proof silicone valve straws. Designed for kids transitioning from sippy cups, this durable, reusable set is dishwasher safe (except stainless steel tumbler) and perfect for spill-free hydration at home or on the go.

## Description

Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz.

## Features

- MATERIAL: The durable tumblers are made of plastic and stainless steel with silicone straws. Long-lasting and BPA free, the lids and plastic tumbler are top rack dishwasher safe, while the stainless steel tumbler should be hand washed. Do not microwave.
- SIZE: The set contains two tumblers and one additional sipper and straw. The plastic tumbler has a capacity of 15 ounces and the double-wall stainless steel tumbler has a capacity of 12 ounces.
- LEAK-PROOF DESIGN: Each silicone straw has a built-in valve that allows liquid to flow when drinking and prevents accidental spills when the tumbler is tipped over. The straw is also soft and comfortable for kids to drink from.
- AT HOME OR ON THE GO: The straw tumblers are suited for travel, since they won't leak while keeping drinks easily accessible. They're also great for drinking beverages at home without worrying about spilling on papers or electronics.
- LIFESTYLE: Zak Designs drinkware makes hydration a fun part of your daily routine! These Baby Shark tumblers are great for kids just graduating from sippy cups. The tumblers are fully reusable--no more disposable cups--and you can choose the material that best suits the situation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Zak Designs |
| Model Number | BBSF-W330-B |
| Color | Blue |
| Diameter | 3.16 Inches |
| Capacity | 15 Fluid Ounces |
| Material | Stainless Steel Plastic Silicone |
| Special Features | Additional Straw, BPA Free, Insulated, Reusable, Splash-Proof |
| Item Weight | 322 g |

## Product Details

- **Brand:** Zak Designs
- **Material:** Stainless Steel Plastic Silicone
- **Colour:** Blue
- **Capacity:** 15 Fluid Ounces
- **Special features:** Additional Straw, BPA Free, Insulated, Reusable, Splash-Proof

## Images

![Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz. - Image 1](https://m.media-amazon.com/images/I/71j+WVVDNIL.jpg)
![Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz. - Image 2](https://m.media-amazon.com/images/I/81Ga5QyeJAL.jpg)
![Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz. - Image 3](https://m.media-amazon.com/images/I/81Igm3aUlvL.jpg)
![Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz. - Image 4](https://m.media-amazon.com/images/I/71DnsLElc6L.jpg)
![Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz. - Image 5](https://m.media-amazon.com/images/I/61r291QgNTL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Is there a silicone boot that fits the stainless steal cup to prevent dings?**
A: We do not currently make these but are looking at adding in the near future.

**Q: Can i sterilize the plastic cup and its lid in the baby bottle sterilizer?**
A: We are not sure, we have not tested it for this.

**Q: Do you have to bite the straw to get get it to work? Or is it like a typical silicone straw?**
A: You can do it without biting but a little pressure will make a better flow.

**Q: Age group?**
A: These are for 3+.

## Frequently Bought Together

- Zak Designs Baby Shark Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA)15 fl oz.
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-02*