Jewelry Making Kit: package includes 1 roll of black waxed cotton cord and 20pcs golden and silver alloy lobster claw clasps with cord ends, easy to use, insert the end of the waxed cord into the crimp end, press it down gently with pliers, tightly to the cord.Size Details: cotton thread cords is 2mm in diameter, 50 yards/roll; claw clasps are 25mm(1") in length. Classic and well-matched color, excellent texture and comfortable handling, perfect for jewelry making, beading, crafting and repairing.Lightly Coated In Waxed: the beading cord is made of cotton and lightly coated with wax, delicate and exquisite, high strength, sturdy and durable, easy to knot and maneuver, suitable for jewelry making and crafting.Easy to Use: the waxed cord is flexible and non-stretchy, suitable for jewelry making, knotting, leather sewing, crafting, wrapping, lacing, binding, beading, decorating, etc. Wrapped on spools for easy storage and use.Wide Applications: can be used for making friendship bracelets, pendants, earrings, necklaces, anklets, waist chain, key chains, shoelace, cell phone ornaments, hair accessories, wishing bottle decoration, macrame hangers,etc.