Description Spid. Acetate sunglasses available in 2 colors, black and translucent gray. Square shape, and paddle-type acetate temples. Size Guide * Lens width (caliber) 56mm * Bridge width 17mm * Temple length 145mm Quality of materials and lens * Organic acetate made from cotton and wood pulp, handcrafted. * Stainless steel core. * OBE riveted hinges, reinforced with stainless steel from five to seven teeth. * Lens type, your choice at the optician. * 100% UVA UVB 400nm sun lens. * Flat base 4 lens curve. * Hardened treatment on the lens and anti-reflective on the inner side with blue reflection.