Rayson 7.9mm Spiral Binding Coil 5/16in Black Coil Binding Ring 4:1 Pitch 100/Box SBR-50-100-B

Rayson 5/16" Plastic Spiral Binding Coil, 40 Sheets Capacity, 4:1 Pitch 7.9mm Black Coil Binding Spines for Business and Educational Purposes, Pack of 100

MAKEASY Spiral Coil Binding Machine with 46 Fully Disengaging Pins - Electric Coil Inserter - Adjustable Side Margin, Comes with Free 1 Box Coil Spines & Plier, 20 Sheet Punch Capacity

Binditek 100 Pack 8mil PVC Clear Binding Presentation Covers, Letter Size, 8.5 x 11 Inches, Square Corners, Un-Punched, Office Supplies