The 31 mm Grain de sable button is made of rhodoid, a light and resistant material. It has a round shape with a circled relief and has 2 holes for stable fixing. This button is made in France and with its large size, it is perfectly suited for couture creations such as coats, jackets or bags. Round 2-hole button with raised circle Thickness: 3 mm Material: Rhodoid Size: 31 mm Color: Sand Made in France Rhodoid is a plastic material invented in the 1940s by the French company Rhône-Poulenc. It is a plastic material based on cellulose acetate, transparent and incombustible. It is a noble plastic material often used for its shine, its lightness, and its transparency or deep color effects.