This retractable badge holder keychain is practical, tactical and easy on the eyes! The rainbow plated style adds personality & makes this ID card holder fashionable and allows easy access for keyless entry in the home, doctor office, hospital, classroom, amusement park fast pass or transit pass. Won't weigh you down! It measures 32 mm so it's not Stinkin' huge. More comfortable for kids too! Clip to pocket, scrubs, jeans, backpack, purse, bag, belt or lanyard. Colourful and cosmic it's versatile for any age for student and employee. Can hold multiple cards including credit card for tap, library card, gym pass FOB and more. Space keychain is fun and shiney.