Carriage Drive Belt for HP DesignJet 230 250c 330 350c 430 450c 750 755c (36inch Model Only) Product: 1 x carriage drive belt, the half-perimeter (from pulley to pulley) is about 126cm  0.5cm (49.6inch) Part Number: C4706-60082 Condition: new Compatible: HP DesignJet 230 250 330 350 430 450 488 700 750 (36inch model only)