The ZCM0300 is a manual pressure sensitive lever operated tape dispenser. Holds up to 4.5" diameter roll of pressure sensitive tape on 3" cores. Shipping weight 3 pounds. Dimensions are 6.25"L (159mm) x 3.5"W (89mm) x 4.88"H (124mm). Save tape by controlling the amount dispensed with each press of the lever. The lever can be adjusted by turning the center thumb bolt counter clockwise to loosen, moving the handle up or down, then retightening.