Suitable for 340 345 346 XP 350 351 353 445 450 chainsaw. Pitch: 0.325 inches, teeth: 7 Item number: 537110503 Color: silver gray Material: metal Package content: 1 x clutch drum 1 x clutch 1 x pinion 1 x needle bearing Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.