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Product Name: Barbell Collar＜br＞Material: Alloy Steel＜br＞Color: Silver＜br＞Product Size:＜br＞Collar outer diameter: 6cm/2.36inch, inner diameter: 2.5cm/1inch＜br＞Product Application:This weight bar clamp is mainly used to fasten weight plates on dumbbells and barbells. It locks plates tightly with precise threads to prevent shaking and loosening during exercise. Ideal for home fitness and strength training, it ensures training safety. It can also serve as a spare part to replace old or damaged nuts and extend the service life of fitness equipment.＜br＞Usage:Slide the 1-inch standard barbell lock onto the bar, screw the nut clockwise onto the end thread, and tighten by hand or with a wrench until the weight plate cannot rotate. Turn counterclockwise to remove. Check tightness before each workout; for double anti-loose locking, install an extra nut in reverse for secure fixation.＜br＞Scope of Application:Fits standard 2.5cm/1inch dumbbell bars, straight barbells and curl barbells. Suitable for home, dormitory and gym use, compatible with most detachable fitness equipment. Perfect for daily exercise and professional strength training for all fitness enthusiasts, and matches most home fitness sets.＜br＞Package Includes: 2 PCS* Dumbbell Locking Nuts＜br＞Note:＜br＞Keep small parts away from children＜br＞Slight dimensional errors may exist due to manual measurement＜br＞Actual color may vary slightly due to different screen displays.

Premium Metal Material, Impact-Resistant and sturdy：Made of high-strength steel with rust-resistant surface treatment, the barbell collar won’t slip after repeated tightening. It remains undeformed under heavy impact, and keeps stable clamping performance against sweat and long-term metal friction, serving as a reliable accessory for strength training.
Anti-Looseness Design：This 1-inch barbell collar features an anti-loose thread structure on the nut, and the flat nut bottom increases static friction. Even during intense movements such as snatches and burpees, it won’t loosen automatically. You don’t need to distract yourself to check the nut during focused training, reducing the risk of accidental falling.
Hexagonal Anti-Slip Structure：The 1-inch barbell collar has a stable petal-shaped hexagonal outline for locking, which increases the friction of hand grip and prevents slipping and idling when tightening. After locking, it engages the threads tightly, firmly fixing the weight plates during fitness shaking and pushing, avoiding loosening and displacement, and ensuring safe and stable exercise.
Lightweight and Portable Design：The weight bar clip is small in overall size and light in weight, taking up no space and not being bulky. It can be easily put into a fitness bag or sports backpack. It can be carried as a spare for home, outdoor training, and it is convenient to assemble, disassemble and replace, without adding burden to travel, suitable for multi-scenario fitness needs.
Wide Compatibility：This barbell lock is compatible with standard 25mm/1inch dumbbell bars, straight bars and curved barbells. It is suitable for home gyms, dormitories, commercial gyms and outdoor fitness. It can be used for weightlifting, squats, bench presses and other projects, meeting the daily strength training needs of various fitness enthusiasts.