XHT 0.4mm Holographic Transparent Film Mirror Laser Iridescent TPU Vinyl Waterproof Material for DIY Hair Bows Sewing Patchwork (Iridescent-0.4mm)

This was as thick as I hoped it'd be! It does have one clear side that peels off, so don't forget that while doing a project! I made a cover for my Happy Planner, a choker and more! Very pleased with this :)

Very small