For under door. Steel, electro-galv., With 2 side pistons and 1 end piston, drop tube 8 x 8 mm, post 25 x 2 mm, delivered without end plate. The end piston connects the upper and lower door, handle is mounted with wood screws, 4153-1010 shortened at the bottom max. 160 mm, 4153-1015 shortened to measure