1. Usage environment: home use 2. Applicable to Ecovacs/Xiaomi Mijia/Roborock 3. Made with 9.5cm/3.7in half circumference and 6.5cm/2.6in diameter for tight fit 4. Made of high-quality rubber material, high strength, wear-resistant, good performance, long service life, suitable for daily use 5. Main functions: It has the ability to reduce the tire wear of the sweeping robot, improve the friction between the machine and the ground, and make the cleaning effect better. 6. Width: 13mm 7. Weight: 3 grams Please check carefully whether the model is suitable before purchasing
