This anti-vibration buffer is compatible with McCulloch chainsaws, including models 81 PM850, 800, 805, 8200, SP60, SP80, SP81, sp105, and SP125c. The buffer is designed to reduce vibration and improve overall performance, making it an essential component for any chainsaw enthusiast. The buffer is made with high-quality materials and does not require assembly, saving you time and effort. Whether you are a professional or a DIY enthusiast, this anti-vibration buffer is an excellent addition to your chainsaw.