Save time mounting & unmounting rolls to a unique spindle. Installs with ease. Simply insert paper roll onto spindle & you're ready to print. This 3" spindle adapter kit is compatible with the large format Designjet T1500 Series, as well as the Designjet T920 Series. Accessory Type: Core Adapter; Dimensions: 7.16 x 4.6 x 4.6; for Use With: HP Designjet T920, T1500; Spindle Diameter: 3".