WIDE COMPATIBILITY -- Replacement front wheels are designed for Navigator Rotator, for models NV350, NV351, NV352, NV355, NV356e, NV360, NV370,NV500, NV501, NV502. HIGH QUALITY -- Our replacement wheels are made of high-quality plastic material, durable and soft, which 't damage floors. Using these high-quality vacuum cleaner wheels,you can enjoy cleaner and fresher air .They will quietly lead the vacuum cleaner to remove food,hair,dirt and dust,thus ensuring that there are no contaminants around your living area. EASY TO IASTALL -- Using a flat-blade screwdriver to push down the old small wheels, and then install the new wheels. KEEP HEALTHY AND CLEAN -- It is suggested to regularly check the wheels and replace worn wheels to help maintain vacuum cleaning performance, bring you a healthier life. Colour: black-gray Material: plastic Package Contents: 1 Pair x Replacement Wheels Only the above package content, other are not included. Note: Light 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.