Belting Services brand for Sony CDP CX450 & CX455 CD Changer 3 Belt Set This is a set of 3 square belts to replace the carousel belt, CD loading belt, and the door belt for the Sony CDP CX450 & CDP CX455. Premium quality, brand new drive belt set for your Sony CDP CX450 and CX455 CX691 CD Changer. With thousands of satisfied replacement belt customers, this is the EXACT quality belt set needed for your unit. USPS tracking is included on all orders.