These strong durable flat nylon Top PerformanceGrooming Loops have translucent plastic slides thatstay in place and won't tighten or loosen on restless animals. They are 3/8" wide and 18" long and attach to a grooming armwith a 2" swivel snap. The 4-pack includes one of each color:Blue Pink Black and Purple. These Basic Grooming Loops are atremendous value. This product meets or exceeds Professional Pet Groomers andStylists Alliance (PPGSA) standards. Size: Each measures 3/8" W and 18" L.