This Blenpar set includes a blade, bottom base, and sealing rubber gasket O ring that are compatible with Oster blenders. The set is designed to make blending tasks easier and efficient. With its durable rubber material and perfect size, it is easy to install and fits perfectly onto the blender. The blades are sharp and can crush, blend or chop ingredients in seconds, while the gasket creates a tight seal to prevent leaks. The set is perfect for kitchen enthusiasts and professional chefs who want to save time in the kitchen.