Compact camera model 39001 for physics optical experiments, made of durable PP material, designed for repeated classroom use and individual study. This model demonstrates the principles of convex lens imaging in a simple, handson format suitable for middle school and secondary school physics. Key benefits Clear demonstration of convex lens imaging: Visualizes how images form through a convex lens, helping students grasp focal length, image distance, magnification, and real versus virtual images. Durable and reusable: Constructed from quality PP material for long service life under regular classroom use. Easy to handle and store: Small, lightweight design makes setup and transport simple for teachers and students. Complete teaching aid: Supplied as teaching demonstration equipment model 39001, ready for standard physical optics experiments. Product specifications Material: PP Size: 12.5 cm x 3.5 cm x 7.5 cm (4.92 inch x 1.38 inch x 2.95 inch) Package includes: 1 piece Camera Model Physics Optical Experiment Set, model 39001 How this product solves teaching challenges Makes abstract optical concepts tangible by providing a physical model that students can observe and manipulate. Saves preparation time for instructors by supplying a readytouse demonstration tool. Supports repeated experiments and group activities thanks to its sturdy construction and compact form. Practical use scenarios Classroom demonstration: Teacher shows lens behavior by moving an object and observing changes in image position and size. Laboratory exercise: Students measure object distance and image distance to calculate focal length and magnification. Science fair or project work: Students use the model to illustrate camera optics and lens imaging principles. Additional information and safety notes Not a toy. Keep away from young children to avoid accidental ingestion. Allow slight measurement variation of 1 to 2 cm due to manual measurement.