23 Weed Thrasher Monster Cutters Replacement Blades Eliminate the frustration of jammed and tangled spools Lasts longer Save Time Fast & Easy Replacement Monster Cutters for your WEED THRASHER, the best trimming system available today. With its Monster Cutters, the WEED THRASHER trimmer head is easy to use and will save you time! Dont worry about wearing out your Monster Cutters anymore. Easily replace them with this 24 pc kit. NOTE: For gas powered trimmers only!