The Martin Yale keeps it simple with their Automatic Letter Opener. Ideal for medium- to large-sized businesses, this letter opener automatically feeds and opens a stack of letters up to 1 " tall in a continual feed. Conveniently, this model requires absolutely no work by the user; it is a completely hands free operation. The envelopes just need to be put into position and the machine turned on. Built to store and open standard business size envelopes, the Automatic Letter Opener can open envelopes at a rapid speed of 7,000 envelopes per hour. Not only is the Automatic Letter Opener convenient and efficient, it is safe as well. The blades used to open the envelopes are fully enclosed in the machine, so the user's fingers are safe. The opened envelopes are neatly organized in the catch tray that also folds up for easy storage. The opener also has non-skid feet, so although it is easily transportable, it won't move around while it's in use. With a light weight of only 16 lbs., this letter opener packs a big punch in a small package. This letter opener will be sure to save time in your office as well as working extremely efficiently for the cost.