The case is made from smooth steel and has a reflective silver finish that complements textiles and lighting with a warm metallic colour. Its lid is formed from a thick piece of clear acrylic that extends very slightly over the rim of the case. The agate stone is polished to make it smooth to the touch and has an asymmetric shape that subverts the angular lines of the box. This Tallulah Decorative Box is handcrafted so please expect slight variations to the finish.