Our Large Wooden Hollow Blocks are an ideal construction set for young children. Suitable for open-ended play in both indoor and outdoor activities. Made of high quality beech hardwood, with a smooth sanded finish. This set includes 28 wooden blocks in 6 different shapes:4 square blocks 10 x 10 x 10cm8 rectangular blocks 10 x 10 x 20cm4 rectangular blocks 10 x 20 x 20cm2 triangular blocks 10 x 20 x 40cm2 flat pieces 20 x 1.5 x 40cm8 flat pieces 10 x 1.5 x 40cmThis set:Develops both gross motor and cognitive skillsEncourages open ended playNot suitable to be left outdoors.Age Suitability: 3 Years +