Usage Tips:Wide Compatibility: This front caster is engineered to fit a wide range of robot vacuum models, including the AV and RV series. It seamlessly replaces models like the AV1010AE, RV1000, and RV761 for optimal functionality.Enhanced Mobility and Efficiency: Give your robot vacuum a with this front caster. The ensures smooth navigation and thorough cleaning, preventing dragging and misalignment that can hinder cleaning performance.Easy Installation: One front caster is included for quick and easy installation. This allows you to quickly restore your robot vacuum's mobility and extend its lifespan without professional assistance.Universal Application: Whether you own a AV, RV, UR, or QR series robot vacuum, this replacement caster is engineered to compatibility across a wide range of models. A single solution meets the needs of multiple models.Durability: Made of materials, this accessory is washable and reusable. This design ensures long-lasting performance and reliability for a variety of cleaning challenges.Color: BlackMaterial: PP+EVAPackage Contents:1*Vacuum Front Caster WheelOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.