About This

• Plastic periscope--the periscope with detachable and splicing design is convenient to carry and store,optical experiment prop
• Science technology --it is an excellent to buy for , which can their knowledge of science, periscope
• Adjustable periscope--put education in fun, cultivate scientific knowledge, for any school, or home use,optical experiment periscope
• Periscope for adults--it can be detachable and spliced, and it will not take up too much space when stored,optical experiment supplies
• Detachable periscope--not only as physical model to explore the mysteries of physics, but also as educational ,periscope for