Features: 1. High-quality PVC material has the characteristics of high elasticity and high wear resistance. 2. The bearing is made of high-strength carbon steel, which can slide smoothly without resistance. 3. Bright colors, a variety of colors can be selected. 4. With flash and adjusting hole, you can adjust the comfortable size by yourself. 5. It is fixed with a lock, making it safer to wear. Specification: Material: PVC Color: Black, Blue, Pink, Orange, Green Size: 13 x 9cm Bearing Weight: Within 50kg Notice: 1.Due to the different monitor and light effect, the actual color may be a slightly different from the picture color. 2.Please allow 1-3cm differs due to manual measurement. Package List: 1pair x Roller Shoes