Size - Button Diameter: 24L 15mm, Thickness: 2.2mm (Actual product dimensions may have an error of ±0.5mm) Material - Sewing buttons are made of resin material, with a smooth surface, durability, and water resistance. Features - The buttonholes are large enough for a sewing needle to pass through quickly and easily. Each button has four holes for secure holding. Applications - Round buttons are used to replace broken or missing buttons on shirts and other clothing. Four-hole buttons are suitable for sewing various clothes, card making, DIY craft items such as scrapbooks, and more. uxcell Sewing Buttons Knitting Buttons Sewing Buttons DIY Sewing Round Flat 4 Holes Resin Pink 24L 15mm Pack of 160 Shipped in simple packaging. 26-3,,,