Martin Yale RapidFold Desktop Auto Folding Machine, Handles Digital Paper Stocks, Grey (PREP7400) Creates four different folds including; letter, half, z-fold, and double parallel Folds up to 4,000 sheets/hr. Handles sheet sizes ranging from 3 1/2" x 5" to 8 1/2" x 14", 16-28 lb. bond Feed tray has a capacity of 50 sheets Includes stacking tray