3/4 in x 500 in (13.8 yds).
To Refill 1 Sided Dispenser: Grasp Empty Core With Thumb And Forefinger And Pull. Push New Roll Onto Posts. To Refill 2 Sided Dispenser: Graps Dispenser, Squeeze To Pull Apart. Refill Roll Cat. 205
Always refer to the actual package for the most accurate information