100% Natural Top-grade Full Grain Leather: These leather strip and leather strap are made of full grain leather, it is premium pull-up oil tanned leather with a firm feel. The pores of the leather are tight and uniform, the fullness and flexibility, the gloss, grease and smell are also very good. Features of Thick Leather: The leather feels soft and smooth, not easy to wrinkle, and has certain waterproof properties. The surface is rich in grease and is not easy to fade. A slight bend can present a two-color effect, with a retro texture. Wide application: They can be used with bracelets, necklace making, jewelry making, leather shoe lace, baseball gloves, wallets, phone case, knife sheaths, sewing Arts & Crafts, sewing ,braiding, beading, and many other uses. 100% Nontoxic Raw Leather Strap: RingSun leather strap retains natural cream, is nontoxic and environmentally friendly, and is safe for skin. No chemical smell, only natural leather smell.No harm to children or pets.