Bottle Caps, Beads and More (Tm) 20 Pcs Brown Coconut Shell 2 Holes Sewing Buttons 38mm (1-1/2") Large Buttons. Made of real coconut shell Large Buttons Hole size: 3.9mm(1/8") Thickness: 4-7mm(1/8"-1/4") Approx: 38mm 1 1/2 "