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. This Package Includes: 1x New Design Blade 1x Seal 1x Base with all fittings included We recommend replacing your blade every 6 months. So why not buy in bulk and save? Check out our store for more details. We also sell all other accessories, seals, cups, lids, etc. Check out our store for more details. If you have any questions or require any further information, feel free to message us.