Black & Decker 242381-00 Lawn Mower Blade This part is compatible with models including; 900370510,900370511,900370520,CMM1000 TYPE 3,CMM1200 TYPE 1,CMM1200 TYPE 2,CMM1200 TYPE 2A,MM850,MM875 TYPE1,MM875 TYPE2,MM875 TYPE3 Blade 242381-00 rotates under the mower deck to cut the grass Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Black & Decker,Craftsman This manufacturer-approved blade (part number 242381-00) is for lawn mowers Wear work gloves to protect your hands when installing this part