1 IROBOT BRISTLE BRUSH FOR THE 500 SERIES + 1 IROBOT BEATER BRUSH FOR THE 500 SERIES * COMPITABLE WITH I ROBOT ROOMBA 500 SERIES - 510, 530, 535, 540, 550, 560, 570, 580, 610 * THIS BRUSH IS PERFECT FOR PET HAIR AND DEEP CARPETS * THESE REPLACEMENT PARTS ARE NOT ORIGINAL IROBOT PARTS, AND WE ARE NOT ASSOCIATED WITH IROBOT. USE OF THESE PRODUCTS MAY VOID YOUR IROBOT WARRANTY. IROBOT AND ROOMBA ARE TRADEMARKS OF IROBOT CORPORATION. OUR BRUSHES ARE MADE UNDER STRICT SUPERVISION AND MADE FROM TOP NOTCH QUALITY. * IF FOR ANY REASON YOU ARE NOT SATISFIED WITH THIS ITEM, RETURN IT TO ME AND I WILL GIVE YOU A REFUND OR EXCHANGE. NO QUESTIONS ASKED. WE ARE CONFIDENT OUR BRUSHES ARE MADE FROM TOP NOTCH QUALITY