Come and see our amazing products. The main lens is measured 4.35" x 2.5" and magnifies up to 3x(300%), due to it's LARGE size you don't need to reposition it all the time to find the best spot. The magnifier itself only weight 5 ounces , therefore, it is ideal for longer reading time, it weights only half compare with other reading magnifiers.Rectangular magnifying glasses are superior to round magnifier, it provides the optimal, most natural shape for reading text without having your hands move all the time. The larger field of viewing lets you read a full line from left to right. Pls confirm with us about the packing info, stock color and exact production time before placing your order.