An Allett verticutter cartridge 'vertically' cuts your lawn. The thin, closely spaced tines remove any lateral growth & moss allowing the lawn a healthier growth rate & pattern. This Allett 17 inch Verticut cartridge is part of the Allet lawncare & quick change system. The 17 inch diameter verticut cartridge is suitable for the Allett Kensington 17K cylinder lawn mower.