The Stabila 70TM Torpedo level is a sturdy level with two shockproof vials (one horizontal and one vertical) The level vial is permanently epoxy-bonded into the top frame giving you a guaranteed and long lasting accuracy of 0.5mm/m = 0.029° in vial-up position. The base is 22cm long with a magnetic strip for hands-free measuring on ferrous metals. The body is a strong aluminium box section epoxy coated for durability. With both horizontal and vertical vials, this spirit level is so handy that you can carry it around with you all the time. Overall length 25cm.