The Alutech and OP series have user-focused design enhancements with high quality construction and unbeatable comfort. Tested to 12g according to HSC, 2000 – Annex 10, as stand-alone or in combination with Alutech deck rails, these chairs offer a robust and stable seating experience in all conditions. Design and features - Height adjustable and / or fixed armrests - Flip back armrests - Easily removable armrest top - Optional armrest attachments for control equipment and cup holders etc. - Cable routing through the chair and centre column - Pneumatic adjustment of sitting height - Shock absorbing column - Adjustable lumbar support as standard - Chair rotates 355° and locks in any position - Pneumatic height adjustment of footrest - Fold up footrest - Footrest rotates with chair and is supported by the column for stability - No direct metal to metal contact - No welded parts - Constructed with pressure die cast and injection moulded parts, and extruded profiles. - Powder coat colour: Metal Grey or RAL 90005 (Black)