10 binding coils, 5 different colors, sufficient quantity, perfect for daily binding notes, documents, reports, etc., making you convenient and professional. These comb binding coils are made of high-quality plastic material, soft and tough, flexible to bend, easy to open and close, durable and reusable, providing you with long-term service. These binding coils have 30 hole posts, the total length is 28 cm/11 inches, you can cut the length according to your needs, 30 holes/A4, 26 holes/B5, 20 holes/A5 can be achieved. Each spiral binding coil is approximately 10mm/3/8 in in diameter and can support up to 65 pages of filler paper, enough space to meet your binding needs. These practical spiral coil binders are spaced approximately 10mm apart, fit most binding machines, and are compatible with 10-hole punches, 20-hole punches and 30-hole punches. Product name:30 hole binding comb Colour:As Shown Material:Plastic Package Contents: 1set * Comb Binding Coils Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.