Professional Jewelers Loupe Set - 3pc Folding Magnifier with 10X, 30X & 10X/20X Dual Lens - Precision Magnifying Glass for Gemstone Appraisal, Coin Collecting & Watch Repair - Essential Tool for Jewelry Makers, Hobbyists & Antique Inspections

The 3pc jewelers loupes set includes one 10X 21mm chrome loupe, one 30X 21mm chrome loupe and one 10X&20X dual butterfly loupe. The 10X power loupe has a focal distance of 1" (26mm), the lens size is 21 mm diameter; The 30X power loupe has a focal distance of 1/2" (13 mm). The lens size is 21 mm diameter, it also include a small loop to attach to a neck chain or key chain. The dual butterfly loupe has 10X power lens with 18 millimeters and 20X power lens with 12 millimeters, the strong magnifications with a mid distance of 1/2" (13 mm) as well. They are all made of optical glass and protected when not in use by the swing-out chrome plated metal cover, it's perfect for pawn shops, antique stores and jewelry shops. All three loupes come in an individual protective plastic case. The complete set is great for rock collectors, coin collectors, hobbyists, jewelers and anyone else who requires distortion free magnification. Please note that the latest version may vary from time to time without advance notice.