Hoopster retaining rings, with low profile, precision circularity, and small radial size, are unobtrusive assembly components. Fitting into much shallower grooves than regular snap or retaining rings, Hoopsters are suitable for light to heavy loads, are ideal for thin wall tubes, and will not twist or deform under load. Easily installed without special tools, they come in standard sizes from 3/8 to 3 in., in carbon and 302 SS.