Includes One (1) Blender Blade and one (1) Gaskets as pictured Item Specifications: Blender Blade Specifications: Color: Gray Replacement Blender Cutter Blade for Black and Decker Blenders. Fits the following Black & Decker Models: BL1900, BL3900, BL4900, BL5000, BL5900, BL6000, BL9000 Gasket Specifications: Mounts between the blender blade assembly and the glass lip of the jar Do NOT install beneath the blender blade assembly or between the blade and the plastic base cap - this will result in a leaky jar and poor fit. Depending on how frequently the blender is used, the sealing ring can become brittle and cracked or compressed so that it will not create sufficient seal to keep the contents of the jar from leaking out of the bottom. Fits the following Black & Decker Models: BL1900, BL3900, BL4900, BL5000, BL5900, BL6000, BL9000