Compatibility: This spool cover is specifically designed for Bosch series lawnmowers and is compatible with the following models: UniversalGrassCut 18, UniversalGrassCut 18-26, and UniversalGrassCon 18-260. The product number is 1600A01R5J. High-quality material: The spool cover is made of high-quality ABS material, which is known for its good stability and impact resistance. Whether in hot sunlight or humid environments, it can maintain stable performance and is not easy to age or crack. Easy to use: The design of this spool cover fully considers the user experience and requires no installation tools, making it easy to install quickly. Simply snap the new cover quickly into place to complete the replacement. Purpose: The main function of the spool cover is to replace old or damaged components, ensuring that the lawnmower remains in optimal condition during operation. A good spool cover can effectively prevent weeds and other foreign objects from entering the machine's interior, reducing the risk of malfunctions. Package list: Each package contains 4 trimmer spool covers, providing additional spare part options for users to replace at any time when needed. Suitable for multiple Bosch trimmer models, it is the best choice to improve lawnmower performance.