The FS250 40mm Piston Needle Bearing Kit is an essential accessory for owners of FS 250 R strimmers, offering a convenient and economical way to replace worn-out bearings. This kit comes in two sets, ensuring you have enough to last through multiple strands of grass or shrubs. Each set includes 10 bearings, and fitting them is a breeze. The bearings are compatible with the FS 250 R strimmer, so there's no need to worry about cross-compatibility issues. This kit is designed to maintain optimal performance, ensuring that your strimmer remains cutting edge and efficient. In short, the FS250 40mm Piston Needle Bearing Kit is a smart investment for anyone looking to keep their FS 250 R strimmer running smoothly and efficiently.