Ideal for small to mid-size businesses. This is a desktop which automatically feeds and opens a stack of envelopes. Hands-free operation, just put some envelopes into position and turn on. Accepts a 13⁄4" tall stack of envelopes. Accepts standard-size business envelopes. Operates at a speed of up to 7,000 envelopes/hour. Blades are fully enclosed to protect fingers. Non-skid feet. Ideal for mid-size to large businesses.