Fisher-Price Stack 'n Surprise Blocks Musical Croc Block Wagon The Stack 'n Surprise Block line rolls to a whole new level of fun with the Croc block wagon Generous building surface on the Croc's back where baby can stack one or all of the 6 included blocks Each time baby stacks they will get a great peek-a-boo, pop action from the blocks Flip out the handle and as baby pulls him along they will get fun sound effects and music To see more, click the "Watch it in Action" link located under the images