IKOS are a combination of 3d puzzle and building toy from ikotoys.com.
With one shape, creative thinkers of all ages can create everything from a full sphere to abstract curved creations. Each pack includes 26 IKO pieces which are made from recycled plastics. It says 6+ on a box and I understand why. My 4yo could connect two pieces together, however, to add more pieces you need to apply pressure carefully not to break your creation in the process. But there are a lot of things you can do with the toy before your hands are ready to explore all building aspects of it. Max loved practicing fine motor skills and colour recognition with IKOS. Alex asked me to make a sphere with one piece inside for musical performance tonight. As for me, I will definitely play more with IKOS after kids go to bed.
Click here to buy IKOS