This is a high-quality Archer replacement drum and rim sprocket. This is a 8-tooth .404 pitch sprocket, and it comes with a needle bearing. 

The sprocket fits Homelite models 600, 650, 750, C-72, ZIP, XP1000, XP1100, XP1020, C5, C7, C9, C51, C71, C91, EZ6, 700D, 707D, 770D, 755D

Archer Chainsaw Saw Chain, Guide Bars and Accessories are quality products and sold worldwide!