This Officially Licensed SpongeBob SquarePants merchandise, guaranteed!! This 28 oz sports shaker bottle features an awesome SpongeBob character design of the character as he is seen in the episode MuscleBob BuffPants with super ripped arms and the saying "Never Skip Leg Day!" yeah, you can tell SpongeBob definitely didn't follow his own advice! The protein shaker cup has a shaker blending ball included. Features a stay-open flip cap and loop top. Made with BPA free plastic; Hand Wash Only, Do Not Microwave. Perfect for pre-workout drinks! Just shake, drink, and go!