... 3. any color& size is ok 1Usage Slip the strap through the ring, draw it up tightly and fold it up ... side2Press tightly on the folded end of the strap to secure it more firmly3Firmly wrap the strap around the object with the sticking side facing ... purchasers7 Specifications 16mm, 20mm, 25mm, 30mm, 38mm, 50mm, 100mm..., the regular size is 20X180mm, 20X200mm, 20X300mm, 25X300mm, 25X380mm, 30X380mm, ...