AERIUS 3D ARRANGING BLOCKSImagine and build with this colorful collection of Aerius wooden blocks. Young designers can make their own creations or get inspired by the included template book. Whether they are free building or playing a stacking game with a friend, there are no limits to what they can make! Combine with Viridis blocks for even more amazing creations. Helps develop spatial understanding and fine motor skills Includes 20 colorful wooden blocks and 1 template