Features: 1. No wheel hole distance issues; if you choose the correct size, installation is easy. 2. Resistant to wear and tear, flexible rotation, quiet operation, durable, and load-bearing. 3. Made of quality rubber and metal, ensuring durability, low noise, and extended service life. 4. Suitable for suitcases, roller skates, caster boards, scooters, and more. Provides quiet operation, anti-abrasion, and shock absorption. 5. Available in 4 sizes. Before ordering, please verify the wheel, bearing, and axle dimensions. Notice: Actual color may vary slightly from the image due to differences in monitor displays and lighting. A 1-3 cm variation may occur due to manual measurement. Material: Rubber + Metal Size: 60x18mm; 70x24mm; 76x24mm; 80x24mm Color/Style: As shown in picture Includes: 1 pair of spinner wheels replacement 1 set of tools (Luggage case not included)