MAKE IT MEMORABLE: Make that bash an eye-catching spectacle! This pack comes with a SET OF 2 light-up happy birthday pins to crown the occasion in mesmerizing style. You’ll love the cheery design that stands out with vibrant shades of orange, blue, green, and red.SIMPLE TO USE: Getting the LED goodness going is easy – just press a button and watch the LED birthday pins flash in red. Batteries come already included (not replaceable). This means the compliment-sparking aesthetics can be triggered right off the bat.PERFECT SIZE: A must-have for any birthday party! Our happy birthday decorations are 3.5’’ in diameter and look great on any shirt, dress, bag, hat, fanny pack, purse, or backpack. They are also easy to wear and remove and make cute keepsakes of the great time had.FUN PARTY FAVORS: Looking for birthday party favors kids will love? Fun goodie bag fillers to make those treat bags a hit? These light-up pins for kids make the perfect gift. You can also get creative and use them as birthday party decorations to light up your space. For ages 4+