1.Made of high-quality bronze materials, high reliability, and durability, factory tested many times to meet or exceed OEM standards. The pulley and blade adapter are welded as one. 2.Pulley Diameter : 2.8",Inside Diameter : 25mm ,Height : 2.85". 3.Applicable Models：MTD , Troy-Bilt , Yard-Man , MTD Pro, MTD Gold,fits for Troy Bilt TB 230 TroyBilt TB240 TB260 mower TB280 ES.Replace OEM Number:687-02528. 4.Easy to install, includes bolts and blade washers for installation. Watch the video on YouTube to help you complete the installation faster. Package Included： 1X687-02528 Lawn Mower Blade Adapter with Pulley .
eBay