PATIKIL Diameter 10.3mm Height 4.2mm Flat Convex Lens, 10 Pcs Acrylic LED Optical Convex Condenser Lens for LED Flashlight Bike Head Lamp, Transparent Electric Space Heaters Beveled Transparent Ruler: Perfect for

Beveled Transparent Ruler: Perfect for all your drafting and drawing needs

The copper weave is infused directly into the nylon fabric

LONG-LASTING DURABILITY: Powder-coated steel resists rusting

instead of the globe which costs more than the whole lamp itself

PATIKIL Diameter 10.3mm Height 4.2mm Flat Convex Lens, 10 Pcs Acrylic LED Optical Convex Condenser Lens for LED Flashlight Bike Head Lamp, Transparent Electric Space Heaters Beveled Transparent Ruler: Perfect forAbout this item Color: Transparent; Material: PMMA (Acrylic ); Shape: Flat Convex; Lens Outer Diameter: approx. 10. 3mm 0. 41inch; Lens Height: 4. 2mm 0. 17inch; Packing List: 10 x LED Optics Flat Convex Condenser Lens Advantage: Made of PMMA (Acrylic) material, it is high temperature resistant, not easy to age, and has high light transmission. The beam spots irradiated through the optical lens are uniform, without black holes, shadows, or dark areas.