This desktop tape dispenser can be powered by AC adapter or battery. It has rubber feet which are also suction cups located on the bottom which keep it from slipping or sliding out of place. You can use the dispenser to cut off various sizes of pieces of tape due to it having a serrated edge that is sharp. This tape dispenser has the capability of automatically stopping the tape from dispensing after you set up the tape length you want. Once you decide and set up the length you want your pieces of tape then you just pull the piece of tape upwards and the hidden serrated blade will cut the tape neatly. The dispenser will give you pieces of tape that are the same size. The dispenser is compact, lightweight, fast and a convenient option to just pulling pieces of tape off of a roll and cutting them with your scissors. The tape is held by the dispenser so you will not have to worry about the tape sticking back to the roll and having to try and find where the roll starts. The package includes 1 dispenser, 1 roll of tape, and and instruction booklet.