Eco-bricks 90 Piece BambooEco bricks 90 Piece Natural Wooden Set Durable, beautifully crafted, and even compatible with most of the other major interlocking block brands (so you don't have to start your whole collection all over again), the Eco Bricks 90 Piece set is a brilliant alternative to plastic block construction. Natural, Biodegradable, FSC Certified Wood Construction Blocks. These interlocking blocks aren't just fun they are friendly to the planet, too! Compatible