Birch & Bug House BlocksBirch House blocks come in beautiful earthy colours. Smooth edges ensure these are safe for your little one's hands. Kids can create many ways to play using their imagination like Apartment blocks, factories, bridges and many kind of buildings that shapes a city. Various multi coloured shapes, patterns, and sizes to help recreate any city look. This set comes with a tray which makes storage easy. All paints and finishes are certified toy safe.