The Bahco 416 Series Spirit Levels are made from lightweight aluminium with a 1.4mm wall thickness profile. They have unbreakable vials filled with liquid resistant to UV light and extreme temperatures. Two lines in each side of flat vial for easier use. The set contains the following sizes: 1 x 416-600 Spirit Level 1 Vertical 1 Horizontal Plumb 1 x 416-1200 Spirit Level 1 Vertical 2 Horizontal Plumb 1 x 416-1800 Spirit Level 1 Vertical 2 Horizontal Plumb This level bag is made from high quality hard wearing fabric. It is padded to offer protection and has a shoulder and hand carry straps. The BP-10037 level bag can take up to six spirit levels and has a specific pocket on the front for a torpedo scaffold boat level. The maximum amount of levels the bag will take is a x2 600mm (one internal pocket and one external exposed pocket), x2 1200mm (one internal pocket and one external exposed pocket), x1 1800mm and x1 250mm. Suits any major brand of level including Stabila, Ox and Stanley