These Worx landroid S/M robotic lawnmower spikes are made of 306 stainless steel and the surface is polished to ensure no burrs during loading and unloading. Compatible with Worx Landroid S/M Robot Lawn Mower S300 [WR130E], S450i[WR101 SI / WR102SI / WR106SI], S500i[WR105SI], S700i[WR101 SI], M500[WR141E / WR165E], M700[WR142E], M800i[WR111MI / WG757E], M900[WG758E], M1000[WR143E], M1000i[WG796E.1], M500 2.0 [WR165E], M700 2.0 [WR167E].
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