"D' Rings are a type of hardware shaped like the letter 'D' and are usually used with a nylon strap to guide or secure loose webbing. Made of tough ABS plastic. 2 of each size included 3/4 in., 1 in., 1 1/2 in., 2 in. Replacement 'D' Rings 2ea of each size included ABS plastic - is tough and durable Weight = .001oz per ring Black - no color choice Works with flat webbing 4 Sizes included are 3/4 in., 1 in., 1 1/2 in., 2 in.