Mercer is sustainably built using bio acetate and German engineered hinges, for lasting durability without lasting effects on the planet. Housed in a plush velvet protective case and box, our packaging is designed from 100% recycled materials to safely transport your glasses to the city of your choice. Mercer is manufactured by our partners in China. The dimensions of the frame are as follows: 140mm (temple length) x 143.6mm (front width) x 18.9mm (nose bridge) x 46mm (lens).