50pcs 3 15/16' Nylon Self-Locking Ties Excellent insulation, acid-resistant and non-aging; Fire retardant and heat resistant Easy fastening, smooth zip in and Locks tightly, won't stretch or slide; High tensile strength and good elasticity Great for LED Rope Light; Perfect for organizing wires, cables, hoses, etc. Widely used in household, construction industry, electronic industry, cable and wire assembly and so on