... .1kg 10x 18 mm, 20x21 mm triplet Silver Jewelers Eye Loupe Magnifier/Magnifying glassFolds into itself Comes in protective plastic case Durable ... This loupe is great for rock collectors, coin collectors, hobbyists, jewelers, and ... : 2 inches 10x 18 mm, 20x21 mm triplet Jewelers Eye Loupe Magnifier Magnifying glass