4 Inch Polycut Blades - These durable replacement parts replace Forester #FOR203TH, Stihl polycut blades, Husqvarna trimmer head and most other heads that use blades with pins smaller than 15/32". 

Heavy Duty - Made of solid plastic, these poly cut blades are tough enough to cut big areas with tall grass, brush and weeds. Chain-link fences and edging can be damaged by a metal weed eater blade, but you can trim right up to the edge with these.

Easy Attachment - These replacement cutting blades are super easy to install. The whole process takes only a few minutes and a couple tools. One package of replacement parts contains four refills which could last a whole season!

Poly Cutter Blade - Thermoplastic polycut blades work best in hard-to-reach spaces and large areas with tall grass and weeds. They are a great alternative to metal weed wacker blades and string trimmer accessories.

Multi-Purpose Blades - Perfect for use on brush whacker, edger, lawn trimmer, and other weedeater attachments. Made for a universal fit for most heads. These blades are 4" in length. They will fit any trimmer blade with a pin smaller than 15/32".