[Various Lenses] The Optical Lens Set Includes Convex Lens, Concave Lens, Prism, Flat Lens, Convex Lens, Concave Lens, And A Variety Of Lenses, Which Is Convenient For You To Experiment, And It Is Very Clear, Giving You Unexpected Results. [High Safety Performance]The Optical Experiment Equipment Set Is Made Of Smooth And Burr-Free Materials, Which Will Not Scratch Your Hands, Which Greatly Protects Your Safety, And Is Made Of Plastic Glass, Which Is Not Easy To Damage, And Is Very Resistant To Falling And Durable. [Sturdy Base]The Base Of The Optical Plane Lens Is Made Of Plastic Material, Which Is Stable And Will Not Tilt At Will. The Metal Pillar Is Strong And Durable. You Can Adjust The Height Of The Instrument According To Your Own Needs To Meet Your Different Needs. [Arouse Interest In Physics]You Can Accompany Your Child To Do Physical Optics Experiments, Stimulate Your Child'S Love For Physics, Improve Your Child'S Practical Ability, And Promote Parent-Child Relationship. [Easy To Carry]The Packaging Of The Convex Lens Imaging Experiment Equipment Is Very Light And Handy. No Matter Where You Want To Take The Optical Equipment, It Is Very Easy. The Flat Mirror Set Is A Good Helper For Your Optical Experiments.