3/4/5cm Hand-held Convex/Concave Lens Glass Magnifier Optical Seat Accessories

Specifications Material Lens Glass Frame Plastic Hand Metal Size 1 2 3 4Lens Type 3CM Double Concave Lens3CM Lenticular Lens4CM Lenticular Lens5CM Plano convex LensLens Dia 3CM3CM4CM5CMLens Focal Length 75CM5CM10CM30CMRod Length 8 3CM8 3CM8 3CM8 3CMRod Dia 0 5CM0 5CM0 5CM0 5CMWeight Approx 26G29G36G39GTotal Length 12 5CM12 5CM13 5CM14 5CMFeatures Measuring the focal length Lens imaging Optical seat accessories The glass sheet has high transparency and can be clamped in a plastic frame The frame is detachable for easy access to the glass piece The metal rod can be used in the optical tool set or in combination with the plastic frame The detachable metal hand lever has a metal screw at the screw for easy installation Package Included 1 Pcs x Concave Convex Lens