Suggested Retail: $22.70. 4 Pcs Drive Wheel Tires Compatible with IRobot Roomba S Series S9 S9+ Plus Robot Vacuum Cleaner Accessories Replacement Parts - These are replacement parts compatible for the iRobot Roomba S9 series, including S9, S9+, and S9 Plus models. The package includes 4 drive wheel tires with free installation tools and a screwdriver. To install, cut and remove the used rubber, then place the new rubber. Please note that the old tire skin is glued to the wheel and you will need to use a knife to cut it off before using the provided tool to peel it off. Brand: kvatar Model: IR-S9 -- LOT STICKER: TCE-BOX-BOXTCED0973-ITEM-d7d84548___LPNNG43Q5KSWM 4 Pcs Drive Wheel Tires Compatible with IRobot Roomba S Series S9 9150 S9 S9 Plus 9550 Robot Vacuum Cleaner Accessories Replacement Parts 4 tire with tool -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.