Package contents: 4 axle adjustment rings. Dimensions: 20 x 32 x 14 mm (inside diameter x outside diameter x width). Adjustment rings are ideal for securing unicycle tires to axle tubes or shafts. The wavy ring is secured with set screws. PREMIUM MATERIAL: Made from high-quality steel with a galvanized surface finish. Resistant to rust and corrosion, making it suitable for outdoor use. UNIQUE DESIGN: Set screw type wave washer provides improved retention when used with softer materials, supports low axial loads, and allows for easy positioning. The collar features a socket head cap screw that securely fastens the collar to the shaft. The nut is made of durable steel, designed for strength and ease of installation. VERSATILE APPLICATION: Suitable for various industrial uses including assembly of carts, karts, trolleys, and similar equipment. Adjustment ring set – 4 pieces of 20 mm cylinder adjustment rings for trolleys and shaft connections. Specifications: Type: Adjustment ring Color: Silver Material: Steel Finish: Galvanized Dimensions: 20 x 32 x 14 mm (inner diameter x outer diameter x width) High-quality construction. Made from carbon steel for durability and repeated use. Grub screws are recessed to reduce risk of injury during handling. Do not install on bent shafts to avoid deformation. Shaft compatibility: 20 mm diameter Quantity: 4 pieces Inner diameter: 20 mm Outer diameter: 32 mm Used as a clamping device or positioning ring to secure components on shafts. Ideal for applications requiring reliable fixation and alignment. Durable, versatile, and suitable for industrial and mechanical applications involving carriers, karts, trolleys, and related equipment. Note: Manual measurement; please allow a tolerance of 1–3 mm.