Building set comes with 36 pieces, including 29 big building blocks designed to be durable, 1 cute blueprint card to build a little bird house, 1 plastic hammer, 1 plastic nut driver, 2 plastic nails and 2 plastic screws Workbench tub for easy storage Blocks are compatible with all Mega Bloks building toys for endless learning fun Ideal for ages 2+, and endorsed by Fisher-Price, First Builders blocks are the perfect fit for little hands, designed to develop thinking and fine motor skills R Exclusive, only available at Toys R Us Canada. Does your toddler love to play pretend Spark their imagination when they open our Lil' Building Workbench and get to work with 36 pieces, including 29 big durable building blocks and a cute blueprint card to build a little birdhouse. They can turn the toolbox into their workbench when they stack the blocks and tap in the 2 plastic nails using the plastic hammer. Then, they can twist in the 2 screws using the plastic nut driver to build the birdhouse right onto the tub. Ideal for First Builders, ages 2+