The invisible door hinge 40 kg left Klose Besser, the best way to install your wood doors! Features: Depth of cut: 30 mm Height notch: 30 mm Not reversible: left or right direction blade Dimension: 23 x 95 mm 3-dimensional setting fire Cup Opening at 180 Quality: aluminum and zinc Axe and fasteners: 304 stainless steel How to use: 3 hinges for a door 60 kg maximum 2 hinges for a door up to 40 kg minimum thickness of the door: 24 mm packaging: Comes in original packaging Warranty: the products of the brand Klose have Besser a manufacturer warranty of 1 year from the date of purchase.