Feature: High-precision laser ranging sensor for precise navigation and mapping. Easy installation for quick restoration of robot vacuum performance. Durable and reliable design ensures long-lasting durability and efficient operation. Improved obstacle detection and avoidance for improved cleaning efficiency. Specification: Material:plastic Color:black Package content: 1PCS Notes: 1. Due to manual measurement, please allow an error of 0-1cm. Please make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks!