Name; buried in Double sit push Trainer (you can also play screw pull explosion) specifications; 1800x700x2200mm main timber material 114mm diameter pipe features: practitioners sit on the equipment, back against the backrest, his hands holding the handle firmly forward push, slow reduction, repeat use of technology: high quality steel high-temperature paint Installation: dig a diameter of 400mm square type buried in the ground 350mm OK, after five days of leisure use.