for Irobot Roomba Combo Essential (RVG-Y1 Y0112/Y0140/Y0110 Q0120 Q011) Before placing an order,be certain to verify that your formulation models, the applicable fit mannequin stated in this product page, you can check the explicit product mannequin quantity on the nameplate on the backside of your machine (many machine have ultra similar names, so you should distinguish via the categorical mannequin number) 1,These usually are not the Genuine /Original products,what we promote are brand Compatible Replacement Products. 2,Package encompass all kits exhibit in photos which possibility you selected above. 3,If equipment misplaced or broken in transit ,we will refund cash to you,you must touch us ASAP may help you to solve the problem. 4,Please give us the chance to resolve any issue perceive the unhappiness you've gotten if the order move wrong,but we will try our greatest to produce you the satisfying results.