Barbell Collar Clamps | Adjustable Clips for 2" Standard Olympic 45lb Bar | 1 Pair of Small Muscle Clamp Fitness Style Plastic Lockjaw Collars | with Quick Spring Lock THESE 2 " CLAMPS ARE BUILT TO LAST: These clamps take a beating and come back for more because they're made of extremely high-impact, molded polyester and not like the cheap, rubbery, plastic lock jaw style clamps SLIDES ON AND OFF EFFORTLESSLY : These clamps slide on and tighten all in one easy single motionwith one hand. Spring-loaded locking system provides added assurance while allowing for quick release KEEPS WEIGHTS TIGHT AND COMPLETELY SECURE: Locks weights safely onto any standard 2 Olympic bar so they dont slide around or fall off. Lift with greater peace of mind (and better results!) LIGHTWEIGHT, PORTABLE, & EASY TO PACK: Our collars are compact and lightweight, so they wont bog down your gym bag. Theyre ideal for Crossfit, powerlifting, Olympic weight training & more LIFETIME REPLACEMENTS: Should our barbell clamps ever fail, we'll replace them at no cost to you. Must register barbell clamps within 1 week of receiving the product