HIPA Bumper Spike with Chain Sprocket Cover for STIHL 017 018 021 023 025 MS170 MS180 MS210 MS230 MS250 Chainsaw Package include: 1 bumper spike, 1 sprocket cover, 2 studs & nuts Fitment models: STIHL 017 018 021 023 025 MS170 MS180 MS210 MS230 MS250 Chainsaw You will receive what you see in the picture