Ideal for environments processing moderate- to high mail volumes. Automatically feeds opens and collects a 1 3/4 tall stack of standard size business envelopes up to 7 000 per hour. Hands-free operation place envelopes in position and turn machine on. Blades are fully enclosed to protect fingers. Nonskid feet. Ideal for mid-size to large businesses and mailrooms. All new letter catch tray included. Blade Type: Concealed Blade Material: Steel Length: 10 1/2 Height: 6 .