These delightful little foam blocks are smooth to the touch, colorful, safe, easy for little hands to grasp and fun to use. Your young architect will delight in hours of open-ended play as their imagination and creativity unfold. The 30-piece travel bag starter set can be combined with other mini sets as the pieces interlock together perfectly. These blocks make a great construction system that will be fun for the whole family to enjoy. COOLBLOX mini comes with a colorful travel bag and stickers to take along when you are on the go and they are easy to use to make constructions. This product is just right for fun anyplace and anytime.