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That rating is for year round exposure so if these are taken indoors during the off season they can be used indefinitely
For tamper-resistant outlets
Easy match with most daily outfits
Size: M5(12
Physics Optical Experiment Set Multifunction Reflector Refraction Triangular Prism Convex Lens Concave Mirror Dial Linear Light Source Teaching Demonstration Equipment for Teacher Student Education auspowers_batchone That rating is for yearPhysics Optical Experiment Set Multifunction Reflector Refraction Triangular Prism Convex Lens Concave Mirror Dial Linear Light Source Teaching Demonstration Equipment for Teacher Student Education Specifications Material: acrylic Package Size: 24cm14cm2. 6cm(9. 455. 511. 02 inches) Batteries Needed: 2 pieces AAA batteries (NOT included for safety) Suitable for: Teacher junior high school students Optical Experiments: refraction of light, convex lens
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