Features: 1. No wheel's hole distance problems, if you choose the right size, you can easily install them. 2. Not easy to be wear and tear, rotating flexible, quietness, durable, load-bearing. 3. Quality rubber and metal made, which is durable and low noise with longer service time. 4. Suitable for suitcase, roller skate, caster board, scooter etc. Quiet running, anti-abrasive, absorbs shock. 5. 4 sizes available. Before placing an order, please check the wheel dimension, bearing dimension and axle dimension. Notice: Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Description: Material: Rubber+metal Size: 60*18mm; 70*24mm; 75*24mm; 80*24mm Color/Style: As the picture shown includes:2 pairs of Spinner Wheels Replacement,2 set of Tools(Luggage case not included)