This Birthday Cake bath bomb is the perfect gift for your bathing bestie's birthday! It smells of delicious buttercream icing, not too sweet but just right. How to Use: Draw yourself a bath and get in there! Pop this bath bomb into the tub and watch while it fizzes. Each bath bombs is individually wrapped in shrink wrap. Shrink wrap protects from damage during shipping + reacting to moisture (humidity/snow/rain).