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 Effortless Installation: Crafted from flexible

Effortless Installation: Crafted from flexible silicone material

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

or measurements on the tape with pens

working seamlessly across plywood

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 Effortless Installation: Crafted from flexibleAbout 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.