PATIKIL 2" (50mm) Focal Length Double Convex Lens, 3 Pcs 30mm Diameter 5mm Height Glass Optically Polished Round Edges Lens for Physics Experiment, Clear workwarehouse Appropriate dimensions: these wax sticks

Appropriate dimensions: these wax sticks for envelopes are approx

-Very fast removal of paint or rust without damaging the original surface

GL GLK Class

[Sturdy & Durable] : Made of durable spring steel material with polished surface treatment

PATIKIL 2" (50mm) Focal Length Double Convex Lens, 3 Pcs 30mm Diameter 5mm Height Glass Optically Polished Round Edges Lens for Physics Experiment, Clear workwarehouse Appropriate dimensions: these wax sticksPATIKIL 2" (50mm) Focal Length Double Convex Lens, 3 Pcs 30mm Diameter 5mm Height Glass Optically Polished Round Edges Lens for Physics Experiment, Clear The double convex lens is a type of lens that is thicker at the center than at the edges and is used to gather light. It can make telescopes, suitable for a variety of applications, including scientific experiments, photography, and optical instruments. Specification Color: Transparent Material: