The SCS BLUEHGC1MD Blue Cup Heel Grounder, with D-Ring features a D-ring for quick, comfortable adjustment, blue hook and loop for improved visibility, and a re-positionable sole for extended performance. This quality grounder features a durable two-layer sole, lot code and a 23-inch multi-strand ribbon. Works with a variety of footwear. Heel Grounders are designed and manufactured for comfort and durability. Heel Grounders are UL listed.