5Pc 1/4 X 7/8 Latch-On Rtcht Bx Wr Set Non-slip Retention Ring 1/4"x5/16", 3/8"x7/16", 1/2"x9/16", 5/8"x3/4", 11/16"x7/8" Made in USA Lifetime Manufacturer Warranty Exposed Gear Design Ideal For Use With Spinzit Belt