This PU elastic wheel set is designed to or upgrade wheels on fourwheel inline skates and roller skates. The wheels are built from polyurethane with elasticity to provide a balanced combination of resilience, grip, and long wear. The set offers reliable performance on a range of surfaces, delivering a smooth roll and controlled handling. Key benefits Smooth ride: PU wheels absorb small bumps and reduce vibration for comfortable skating. Durable and long lasting: elasticity polyurethane resists wear, helping wheels hold their shape over time. Consistent performance: maintained elasticity and round profiles support steady glide and predictable handling. Quiet rolling: engineered wheel surface minimizes noise for a more pleasant skating experience. Easy replacement: compatible with standard fourwheel inline skate frames; simple swap to restore performance. Key attributes Functionality: replacement tire set for inline skates and roller skates with a fourwheel configuration. Compatibility: designed to fit common fourwheel inline skate frames and setups that use PU wheels. Size: fourwheel inline skate configuration; intended for standard inline skate wheel mounting. Material: polyurethane (PU) with elasticity. Performance: provides smooth roll, good grip, and durable wear under regular use. Bearings: bearings not included (wheels/tires only). Suggested applications Replacement for worn or damaged wheels on fourwheel inline skates to restore glide and control. Upgrade for budget or aging skates to improve ride quality on indoor floors and outdoor pavement. Spare set for skating clubs, families, or travel teams to ensure multiple skaters have reliable wheels during events or trips. Use cases and guidance Replacing wheels on fourwheel inline skates after signs of flat spots or reduced grip. Upgrading existing inline skates to achieve a smoother, more predictable roll for beginners and experienced skaters alike. Carrying a spare wheel set for practice sessions, recreational skating, or group events to minimize downtime. Maintenance tips Inspect regularly for wear and flat spots; when performance degrades. Ensure proper installation and secure mounting to maintain alignment and safety. Clean wheels to remove debris that can affect grip and longevity. Note: This wheel set focuses on PU wheels and tires for inline and roller skate configurations. Bearings are not included. For results, verify compatibility with your skate model and mounting hardware before installation.