High-quality materials – these inline wheels are made of highly elastic and wear-resistant PU, which can better absorb vibration and impact, and are not easy to break. They provide excellent grip, allowing for safe skating without slipping. These roller skates are suitable for beginners and offer smooth and easy riding experience indoors or outdoors. Ideal for daily practice, recreational skating, skating competitions, and artistic skating. High-tech elastic material ensures smooth, quiet movement. Suitable for indoor daily practice and casual skating. Size: 70x24mm. Material: PU. Color: Black. Package Contents: 4 x Inline Skates Wheels. Only the items listed are included; other products are not included. Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm.