Impact-Resistant MaterialMade from high-quality ABS plastic, offering excellent resistance to impact and wearEnhanced DurabilityBuilt for long-lasting performance, ensuring reliable use over timeEasy InstallationSimple and quick to install, saving time and effort for usersSmooth OperationDesigned to maintain smooth and efficient operation for your lawn trimmerBreak-Resistant DesignEngineered to reduce the risk of cracks or damage during heavy useSpecifications:Material: ABSSize: 43*17mmReplaces part numbers: 791-153066 and 791-153066BApplicable:Compatible with MTD models: 41CDZ01C735, 41AD110G883, 41DD160G983, 41AJCS-C902,41AJBT-C954, 41EDZ03C758, 41BDC25C010, 41AD26OG701, 41CD425C995, 41CDY15G901,41BDY40G901, 41ADY71C901, 41ADC25C010, 41CD700G977, MT765, 41CD765G977,41AD180G983, 41AD452C755, MT700, 41ADZ01C758, 41AD700G929, 41ADY21C901,41AD457C755, 41AD465C910, 41BDY20C901, 41BD700G977, 41CDY70C901, 41AD575C910,41BDZ25C766, 41ADC46G912, 41ADC05G912, 41ADC20C912, 41BD7VPG900, 41CDZ11G799, 41DDZ12G799, 41BD765G900, 41DDZ03C758 moreCompatible with Craftsman Trimmer: 31674556 31679111 31679112 315742260 316711370316711470 316711471 316791020 316791080 316791081 316791190 316791191 316794400 316795030 316796150 316798221 316990100 316990110 16.792520 (41AJCS-C799) 16.794400 (41ADZ21C799) 316.711370 (41ADZ11G799) 316.745400 (41ACETBC799)316.79119 (41AD780C799)Compatible with Troy-Bilt string trimmer models: BR720, TB10CS, TB15CS, TB20CS, TB20DC,TB21EC, TB22EC, TB26TB, TB32EC, TB415CS, TB475SS, TB50, TB65SS, TB70SS, TB75SS,TB80EC, TB22, TB22EC, TB2EC, TB80EC and morePackage included:4 x Bump Knob AssemblyOther items not included