SAFE, SPARKLING FASHION FUN??o LED is simply wonderful. It’s safe, low-energy, doesn’t burn and lasts for ages. The lights twinkle festively and don’t cause eye tension or headaches. The ideal way to sparkle. Battery information: Concealed battery pack, 2 x CR2032 button cell required (battery inc.)FESTIVE, FLASHING FUN. Look good and feel great in quality knit fabric that fits well, retains its shape and can remain a festive favourite for years to come. Guaranteed to wow your loved ones.DRESS TO IMPRESS. Great to wear at an office party, perfect as comfy weekend gear for Christmas shopping trips or for making a festive social splash at home. Wear it loud, wear it proud. Wear it your way.CHOOSE YOUR SIZE: Please double check the measurements left before your purchase and order the proper size according to your figure.EASY CARE DOES IT. Our jumper is 100% acrylic and have led lights, you need to pop it down to the dry cleaners to clean. Please don’t wash it yourself or it will damage it.