Most unique are the side plates are made of polished black walnut attached to the steel body with eight brass barrel cap nuts. The rack-driven bed is acetal, a plastic of hardness similar to polycarbonate measuring 3/8” thick, 6” wide and 14 1/2” long. The 8” stainless steel wheel drives the gear chain system and driving shaft with a spur gear meshes with the bed’s rack gear. The top and bottom rollers are 1 1/2” steel on roller bearings. Synchronized pressure screws raise the top roller and the synchronizing chain keeps the top roller level, assuring uniform printing pressure across the width of the plate. The press is designed to produce prints from relief plates from 1/8” to type-high blocks. Thick intaglio plates present challenges, therefore 22 to 35 gauge plates are recommended.