This gasket has somewhat ridge or a lip. Made to last Compatible with 600W / 900W Extractor blades and Flat milling blades These gaskets are supposed for those for NutriBullet blender with a lip Will no longer event for NutriBullet blenders the place the gasket doesn't have a lip. These Gasket Replacements for NutriBullet 600W 900W blenders match on either for NutriBullet Extractor Blade or for NutriBullet Flat Milling Blade, or any of the lids. Colour:gray Material:plastic Size:Outer diameter: 9, internal diameter: 8CM Package Contents: eight * DURABLE gray gasket Only the above kit content, other products should not included. Note: Light shooting and various reveals could cause the color of the thing in the photograph considerably diverse from the genuine thing. The length allowed error is +/- 1-3cm.