Description: 100% brand new and high quality. Made of premium nylon material, more durable Easy to use, one hand install ~ Spring powered Snap-Latch design to keep you safe. Perfect for CROSSFIT, strong lifts, powerlifting, weight lifting, or any other workout. Perfect for cast plate, cast grip plate and rubber grip plate and must for all standard home gyms and professional gym owners Specifications: Type: Barbell Locks Material: nylon Color:Black Inner diameter: 25/28/30mm Suit for: Screw type bar and Smooth type Bar Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-3cm differences due to manual measurement.