The case is made exclusively of thick bridle leather that is folded over & hence makes the case very strong. The inside is lined with velvet to protect the spectacles themselves. made from high-quality, vegetable-tanned leather in a small workshop in Rheinhessen. Length 18 cm (7” approx.), width 7.5 cm (3” approx.), depth 3.5 cm (1” approx.). For spectacles up to max. 15 x 6 cm (6” x 2” approx.). Weight 110 g.