Nutribullet Gasket 2 Pcs Original Diameter of gasket - 4 inches 2 pcs^Fits all parts of Nutribullet that has gasket as long as its 4" in diameter^All original pulled from box sets^Packed in seller's own packing^Does not fit Nutribullet RX's 5" diameter parts. Does not fit Magic Bullet's 3" diameter cups and blades..