Coconut Shell Buttons Fit Sewing and Scrapbook 25mm Enamel Dark Grey Wood Buttons Material: Coconut Shell. Quantity: 40PCs. Size: Approx:25mm(1") Dia. Hole size: 2.5mm( 1/8")Thickness: 4.1mm( 1/8") - 4.5mm( 1/8"). Color: Dark Grey.