All our accessories are premium quality and fit all 600 and 900 models. This is a great replacement or upgrade to your existing blade. In this new design, the bottom of the blade is reinforced and the rotation movement is upgraded for better performance. Please check the seal on your blade before purchasing this item. Package Includes: 1x New Design Blade 1x Colossal Cup (32oz) 1 Grey Seal Gasket -Fits 900 Models and any New Design 600 accessory with Grey Seal