These blocks are handmade by me. They are inspired by Bauspiel- they are NOT Bauspiel. Each block is made of European beechwood which is extremely durable. The blocks measure 4” x 2” each. There are a total of 15. Each block is a different color. There are no matching blocks. These were Intended to be part of a full set. I am moving and will not be completing this set. Accepting reasonable offers. Can upgrade shipping if desired.