The STIHL 61607039601 is an authentic OEM grass catcher box bottom designed for specific STIHL lawn mower models. This component is crucial for the efficient collection of grass clippings, ensuring a tidy lawn finish. Manufactured to STIHL's rigorous quality standards, it provides a precise fit and durable performance, maintaining the optimal functionality of your mowing equipment. Replace a damaged or worn grass catcher bottom to restore your mower's collection capability.