Pre-focused dual lens loupe for close-up viewing Lens Diameter: 1.0 inch. 10x power stand magnifier Transparent Acrylic base lets in lots of ambient light. Great magnifying loupe for jewelers watch making photography printing geology biology electronics coin and stamp collectors crafts and hobby. Item Dimensions: 2.0 inch x 2.0 inch x 1.75 inch Weight: 1.4 ounces