Enhanced Compatibility: Specifically designed for models 435, 440, 445, 450, 346, 351, 353, 357, and 359, this chain catcher kit ensures a and seamless functionality, replacing parts 503886301 and 503886302. Standard Assurance: Adhering to stringent specifications, this replacement chain catcher kit includes parts that are engineered to meet or exceed the original-equipment standards, ensuring reliability and durability for your chainsaw. Comprehensive Kit Contents: Each package comes with 2 robust metal chain catchers and 2 chainsaw screws, providing you with the necessary components to upgrade or replace the chain catching mechanism on your chainsaw. Robust Construction: Crafted from high-quality materials, the chain catcher in this kit attaches securely to the felling dog and crankcase, enhancing the stability of your chainsaw's blade during operation and ensuring cutting practices. Color: Silver & Black Material: Metal Package Contents: 2set * Chain Catcher Only the above package content, other products are not included. Note: Light reflection 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.