Kind Tips-Please check all pictures carefully for compatibility before buy.Before replacement, please take out the old gasket and check whether there is any foreign matter remaining in the gap of the blade, press the new gasket in advance to ensure it can be placed smoothly without the leak. Premium Material-about 10 cm/ 3.9 inch in diameter, made of food-grade silicone . Fit For -Fit for Ninja Blender BL480 BL680 BL910 CT680 For Ninja Blender Seal Ring--6pcs the Replacement Gasket O-Ring is in total to suit for your daily use and replacement. The hooks are included in the package. Tips For Use -The grooves are different on each side of the ring. Make sure you instal with the 1-groove side down, and the 3-groove side out. Otherwise, it won't fit properly. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:Silicone Package Contents: 6pcs x the Replacement Gasket O-Ring 1 x hook Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.