Global Girls’ dog collars and leashes are not only beautiful, but they're made to last! Like our beaded belts and sandals, the beads are sewn into the thick leather with clear fishing line and then the beads are secured again with strong thread so that they stay on for good. The collars and leashes are also lined on the reverse side with soft leather; the buckle and loop are made of sturdy brass, so they will not rust. All told, these items are made to be worn and used everyday for years to come. Choosing the correct size collar: measure the dog's neck leaving about 2 fingers for wiggle room. That measurement should be in between the smallest and largest hole of the correct size collar. Example: Fido's neck measures 8", so you would choose a collar from the 7.5-9.5" collars.