SD3121 we plant the production of glass lenses, many varieties, which is a concave mirror glass, also called a magnifying glass, 201 mm in diameter, the depth of the concave: 16mm, glass thickness: 2mm, 200 pieces of a box, separated by a single paper, 2000 piece, can customize different size, welcome to the unit needs to come to the procurement, preferential amount, the product model