Encourage young builders and architects to stack, build and balance with the Wood Designs Hollow Block and Arch Set! This unique wooden 29 piece set features a total of 10 different curved, straight and angled block shapes ranging from 4 5/8”W – 18 7/8”W. This classic educational S.T.E.A.M. toy helps develop spatial-awareness and motor skills as well as spark creative and imaginative play with others. The blocks are constructed from solid hardwood which is sturdy and safe for ages 3 and up! This product is GREENGUARD Gold Certified for non-toxic emissions and air quality. The Wood Designs Hollow Block and Arch Set comes with a 2 year manufacturer warranty. Imported.