Topro 10X Watchmaker Jewellery Diamond Optical Magnifier Glass Watch Repair Tool Material: ABS Plastic & acrylic mirror Magnification: 10X Dimension3.6 X 3.6 X3.0 cm Great for collectibles, arts & crafts, jewelry repair, electronics, science & watch repair Compact of precision watchmakers loupes for hobbyist, model makers, electronic repair and watch repair of all kinds