very simple, brushed stainless steel and carbon fibre bangle, the hinge is an integral part of the design (reveals a 3.8 cm opening to slide your wrist in sideways - fits most wrists!), inner dimensions when closed 6.8 cm wide and 5.8 cm high, width of metal 8mm, carbon inlay is 1.8cm long, the beauty weighs 16.3 g and is one of those "can't go wrong pressies"