General description The Sprocket cover with chain tensioner is designed for various STIHL chainsaw models, including MS170, MS180, MS210, MS230, and MS250. This 6-in-1 set includes a sprocket cover, chain tensioner, bolts, and nuts, providing everything you need for a quick and easy replacement. Technical specifications Material: Strong ABS plastic Includes: Sprocket cover × 1, chain tensioner × 1, nut × 2, bolt × 2 Compatibility and accessories Compatible with STIHL models: 017, 018, 021, 023, 025, MS170, MS180, MS210, MS230 Usage Protects the sprocket from damage Keeps the sprocket clean Ensures smooth running of the chainsaw