20 Pieces Thin Fresnel Lens Pocket Size Magnifier Lenses Credit Card Magnifier for Reading or Fire Starter

Small size: The handy plastic magnifier is pocket size and lightweight, convenient for you to easily store them in a purse, wallet, pocket and so on. Wide usages: These magnifying lens are useful for helping people to read better; They are suitable for reading newspapers, maps, and magazines, good for home traveling, experimental observation and others; They can also be applied for the experiments of gathering solar energy. Specification: Material: PVC plastic material Size: 8.5 x 5.5 cm/ 3.35 x 2.17 inches Color: transparent Quantity: 20 pieces Package includes: 20 x Credit card magnifier