Build and stack for limitless fun with the award winning first builders big building bag by mega bloks. These bright primary coloured blocks encourage hands on exploration and open ended play. Construct tall towers and fantastic fortresses. First builders blocks are made big, especially for little hands to handle. When playtime is over, conveniently pack and store the blocks in our new pvc free packaging. Better for little hands specially designed for little hands these first builders blocks are better for encouraging creative play whilst helping develop your child's fine motor skills through stacking and detaching in so many arrangements. More building possibilities construct tall towers, fantastic fortresses or crazy creatures with a variety of sizes and colours your little one can turn their blocks into whatever their imagination comes up with. Compatible with other sets when playtime is done the convenient pvc free bag lets you safely store the blocks ready for another day's play. The blocks are also fully compatible with other mega bloks first builders products for more block building fun.