Package Include: <br> Blender Replacement Parts and Accessories - Seal Ring Gasket Replacement with Lip - 4 Pcs. <br> High quality silicone, BPA Free <br><br> Compatibility: <br> Seal Ring Gaskets Replacement - Blender Replacement Parts Series 600 / 900 - Compatible with NutriBullet Personal Blender 600 Watt and Compatible with NutriBullet Pro Personal Blender 900 Watt <br><br> Warning: <br> Before replacing the gasket, make sure you get out the worn gasket from the blade! <br> This is the most common misunderstanding. <br> Please watch the installation video; this is the best way to replace easily <br><br> Pay Attention: <br> Please check that your seal ring gasket Has the Lip (on Both Sides). <br> Check the dimensions of your blade to be sure. <br> Compatible blade has Outside Diameter - 4.05 inch and Height - 1.57 inch. <br> Dimensions of a gasket installed into a blade: Outside Diameter - 3.9 inch, Inner Diameter - 3.43 inch, Width - 0.235 inch <br><br> Not Compatible with: <br> These gaskets are meant for blender blades where the gasket Has the Lip. Will not fit the blades where the gasket doesn't have a lip. <br> Not Compatible with Nutri Bullet RX blades 5" diameter. <br> Not Compatible with Magic Bullet blades 3" diameter. <br> Not Compatible with Baby Bullet blades. <br> <br>100% Consumer Satisfaction: <br> For any reason you're not completely satisfied, please do not hesitate to contact us for a replacement or full refund