This is a set of 100 straps/cords with lobster clasps. There are 10 colors, 10 of each color, for a total of 100 pieces. The size, including the lobster clasp, is approximately 60mm to 70mm in total length. (There may be slight variations.) There may be some cords with defective lobster clasps, so we will include 5 extra pieces (color cannot be specified). They will be shipped in OPP bags. Thank you.