Includes one Extractor and Flat Mill Blade. Compatible with Nutribullet 600W, 900W, NB-101B, NB-101S, NB-201, NBR-0601, NBR-1201, NB9-1301, NB-WL088D-23, 900 Pro Series Blenders only The blade is made of stainless steel and never needs sharpening. The Milling Blade Flat Blade is ideal for milling grains, grinding fresh herbs and chopping nuts. They are NOT Compatible with Nutribullet RX,Prime, Gasket is included and is preinstalled. We are not affiliated in ANYWAY with Homeland Housewares, Compatible with Nutribullet 600W, 900W, NB-101B, NB-101S, NB-201, NBR-0601, NBR-1201, NB9-1301, NB-WL088D-23, 900 Pro Series Blenders only. The blades are NOT Compatible with Nutribullet RX, Broke your Extractor blade and Flat Blade Milling blade. No problem. We have the replacement at an AFFORDABLE COST. The Extractor Blade comes with Gasket installed. The blade is made of stainless steel and never needs sharpening. The Milling Blade Flat Blade comes with a gasket as well and is ideal for milling grains, grinding fresh herbs and chopping nuts.