barbell clips

Collars and clips are commonly made from steel or steel alloys, aluminum, iron, and various plastics/resins such as nylon resin; some combine metal bodies with rubber or plastic inner linings.

Advertised holding capacities in the results range from about 10 lb up to roughly 600 lb. Common security features include protective rubber or inner linings, non-slip grips, quick-lock or lock-jaw mechanisms, and spring-steel designs for a firm hold.

Attachment methods include spring clip action for quick on/off, single-motion quick-lock or lock-jaw levers, and snap-latch or quick-release mechanisms that allow fast plate changes.

Search results commonly show rack and storage accessories such as J-cups and double bar holders, which protect bars and provide storage in power or multi-function racks.

Small spring or aluminum collars can weigh under an ounce, many clamp-style collars are around up to about 1 lb, and larger rack accessories (like J-cups or double holders) are substantially heavier—for example, pair weights in the search results can be multiple pounds.

Sizes vary widely: small collars are only a few inches (example: about 3.5 x 1.5 x 1.5 inches), while rack accessories and J-cups occupy much larger footprints (example: about 16 x 14 x 4 inches) and are considerably heavier than small collars.