<ul><li>High definition fresnel lens-- simple structure, smooth edges surface, safe and secure, not worry about hurting your hands.</li><li>Computer moniter-- high-definition imaging, high transmission, smooth edges, can be used for optical experiment.</li><li>High-definition fresnel lens-- simple in structure, easy to use, transparent appearance design, you can use it with confidence.</li><li>Optical transparent fresnel lens-- fresnel lens is simple and easy to use, excellent performance, bring much convenience to you.</li><li>Fresnel lens high transmission-- the simple design will ensure its high performance as excellent projector accessory.</li></ul><br><br>

Anneome Projector Fresnel Lens Set 2pcs 90x140mm High Definition Material Safe Easy to Use Optical Experiment