Description It is manufactured with heavy steel to help guarantee resistance, reinforcing critical stress points for greater durability. It also has thermally treated extension screws that allow a safe height adjustment. Steel construction for heavy work. Designed to lift up to 10 Tons. Minimum height: 230mm Maximum height: 460mm Thermally treated toothed chair for a secure grip. Weight: 6.5 kilos Packaging dimensions: 13x12x23cm