funflector Safety Reflector - Particle Zoo - Stylish Subatomic Reflective Gear for Science Geeks, Physicists, Astrophysicists, Cosmologists, Students, Teachers, Professors and More This collection of charming elementary particle and the mysterious dark matter are unique gifts for physicists, astronomers, scientists and physicians. Every elementary particle interact with each other a little bit differently and their personality has been lovingly captured by the Particle Zoo. This collection contains one of each reflector: proton, photon, Higgs Boson, Gravitational wave and Dark matter. Which science buff on your list would you give them to first? Fun-to-wear, premium safety reflectors create high visibility up to 500 feet in the dark WITHOUT high-viz colors. They are a must-have for kids, teens and adults when walking, running or bicycling in the city, suburbs or along countryside roads at dusk, at night and in the early morning. Each safety reflector is about 2 x 2 inches (52 x 52 mm), steel ball chain 4.5 inches (11.5 cm). Design by The ParticleZoo. Made in USA Use the ball chain to hang the reflector on zipper pulls of jackets and backpacks and on bags, purses, strollers, wheel chairs, wagons, dog leashes and more. 7 out of 10 pedestrian accidents occur at night, often because drivers did not see the pedestrian. funflector(R) reflectors can be seen from over 500 feet.