1inch and 3inch diameter spool, easy to switch over by hand, holder fits 2x 3/4inch regular tapes with 1inch core and 4x 3/8inch heat tapes with 3inch core. easy to switch manually, the length of the cutting tape is the same. You can also choose the length to be intercepted. Every few teeth apart on the watermill, there is a space for finger to lift the tape, even with gloves.Width and West of tapes can load on: The total width of the tapes should not exceed 1.5inch. And the 1inch and 3inch core have the same west of 1.6inch. Rotating windmill design, The outside concealable cutter blade turns on for cutting to any length . just turn one side of the heating tape dispenser clockwise. It can bring you much convenience for cutting tapes and sealing cartons or bags. Used for sealing all kinds of bags, such as food bags, fruit bags, etc. Colour:Green Material:plastic Package Contents: 1 * Tape Dispenser Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.