Features: This set is precision machining, and can be applied for repairing chips, jewelry and electronics, doing leather, medical and laboratory work, etc.Warm note: advice to use only a single eye for viewing because you may fail to focus when using both eyes lenses at the same time and it will make you uncomfortable Specifications: Product material: acrylic lens, ABS, stainless steel Color: black Package weight: 0.48 kg (including 8 pairs of lens and 9 pairs of precision tweezers ) Lens diameter: 95 x 42 mm Frames size: 185 x 140 x 60 mm Single-lens lens magnifications: 2.5x, 4x, 6x, 8x, 10x, 15x, 20x, 25x Power by: battery LED quantity: 2 Tweezers model: ESD-10/ ESD-11/ ESD-12/ ESD-13/ ESD-14/ ESD-15/ ESD-16/ ESD-17 Package includes: 1 x Storage bag 1 x ESD-10(122 mm) 1 x ESD-11(141 mm) 1 x ESD-12(135 mm) 1 x ESD-13(120 mm) 1 x ESD-14(124 mm) 1 x ESD-15(125 mm) 1 x ESD-16(125 mm) 1 x ESD-17(124 mm) 1 x EDS34A(120 mm) 8 x Acrylic lenses: 2.5x, 4x, 6x, 8x, 10x, 15x, 20x, 25x 1 x Glasses storage case 1 x Elastic band