Notch Friction Savers with Aluminum Wear Safe Rings Rear Handle The spool has two key

The spool has two key slots to lock the trimmer line in and keep it from unwrapping while putting the cap back on the trimmer head

dust-sealed starter unit

Are you a professional who won’t compromise on power

a cell phone

Notch Friction Savers with Aluminum Wear Safe Rings Rear Handle The spool has two keyThe Notch Friction Savers are constructed from multi layered, fray resistant, custom Nylon webbing. Aids in reducing friction during ascend Suitable for use as a false crotch Prevents tree damage Bright coloration for ease of visibility Dense, multi layered webbing weave resists twisting Colored coded ends for ease of retrieval 23KN product rating Meets ANSI Z133 standard Ring Type Small Ring Large Ring Inner Outer Diameter ID OD ID OD Aluminum 28 mm