Thank you for viewing. These are wooden building blocks from Naef, educational toys from Benesse's Worldwide Kids. Product Name: Naef Naef Spiel Manufacturer: Naef / Naef (Switzerland) Age: 10 months and up Size: 1 piece 5cm x 5cm x 5cm Contents: 4 each of red, blue, yellow, and green, for a total of 16 pieces Material: Maple Since its release in 1958, this is a best-selling wooden toy representing the 20th century, loved worldwide for over 50 years. These 5cm square blocks are specifically designed to nurture the user's development. Box included. There are some minor scuffs on the corners of the blocks, but overall they are in good condition. Please understand that these are used items before purchasing. (*^^*)