【Universal Compatibility】Designed for WORX LANDROID S and M series robotic lawnmowers, including models S300, M500, M700, M1000, and their variants. 【Enhanced Traction】The anti-slip pins and wheel protectors provide improved grip and stability on various terrains. 【Durable Construction】RSWL-01 spikes made of high-quality plastic and RSXJ0003 wheel protectors crafted from robust rubber for long-lasting performance. 【Easy Installation】Specifically sized to fit perfectly for WORX LANDROID models, ensuring a straightforward and secure attachment process. 【Improved Performance】Enhances the lawnmower's ability to navigate slopes and challenging surfaces, resulting in more efficient and thorough lawn maintenance. Specifications: Model: RSWL-01 Material: Plastic Product size: 205*2.5mm Compatible with Worx Landroid lawn mower robot S and M models: S300 [WR130E], M500 [WR141E], M700 [WR142E], M1000 [WR143E], S450i [WR101 SI], S450i [WR102SI], 500i. WR105SI], S450i [WR106SI], S700i [WR101 SI], M800i [WR111MI], M800i [WG757E], M900 [WG758E] M1000i [WG796E.1], M1]. 00i ID B. [WR113MI], M500 2.0 [WR165E], M700 2.0 [WR167E] Model: RSXJ0003 Material: Rubber Product size: 85*44mm Compatible with Worx Landroid robotic lawnmower front wheel such as: S300 (WR130E), M500 (WR141E), M500 Plus (WR165E), M700 (WR142E), M700 Plus (WR167E), M1000 (WR143E), L8. 000 00 148E, L1000 (WR147E.1) (Note: L800 and L1000 need 2 wheel protectors.)