Features: 1. The wheel is strong, anti-acid, anti-corrosion and waterproof. 2. The inflatable wheel has high elasticity, good wear resistance and durability. 3. Bearing design with inner diameter of 10mm, more bearing, smooth and unobstructed. Specification: Material: Rubber+Plastic Weight: 510g (Approx) Tire model: 8 1/2X2 (50-134) Tire diameter: 21CM (Approx) Tire width: 5CM (Approx) Bearing inner diameter: 10MM (Approx) Application: Children's carts, baby strollers, etc. Warm Tips: Please check the sidewall of the tire before purchase. If "8 1/2X2 (50-134)" is displayed, the tire can be used. Package list: . 1 * Wheel Tire Note: 1. All pictures are professionally color-coded, but due to the different ambient light and different display device settings, there may be some deviations between the pictures you see and the items themselves. Please understand. 2. The data is measured manually, there may be some deviation, but it does not affect the use. 2020-05-09 11:21 SX-dd--YL192158