CONTENTS: 12 silicone rubber bracelets / 4 different designs / 3 pieces per design. SIZE: 8 inches circumference, one size fits most adult men and women, tween and teen boys and girls. Giftphoria's variety pack of 1 dozen science wristbands features an assortment of science-themed statement bands. This pack contains 4 unique bracelet designs: Science has all the Solutions, The World Runs on Science, Proton Positivity, and Science Definition. The ideal giveaway item for science birthday parties and science themed events, these versatile wristbands make great science party favors for science students and science lovers. They celebrate various branches of science, including physics and chemistry, in a stylish and trendy way. Kids and adults alike enjoy wearing these fashionable bands as single bracelets or stacked together to make a unique statement. These bulk science gifts are easy and convenient to slide into a goodie bag and make fantastic end of year classroom prizes for middle school, high school and college students. Science graduates will be happy to receive these from teachers as graduation awards, as they make long-lasting souvenirs that endure over time. Conveniently packaged in a budget friendly bulk pack, they provide a one stop gift solution when you need christmas gifts for students from teachers.