Floating retainer attaches to sunglass temples with rubber grip loops to keep sunglasses in place, and afloat if dropped overboard. Adjustable for a snug fit. Prevents Loss of Eyewear if Dropped Overboard. Floats Eyewear Up To 1 ounce. Hypalon Sliding Floats are Adjustable. Grip Loops Attach to Sunglasses Temple Tips. Hand Washable.