From Gullane (Thomas) Limited 2001, this is a set of 10 wooden nesting/stacking blocks. Featuring numbers, stories and pictures around the blocks, these can either been nestled inside of each other for compact storage or stacked to build a tower of ten with the smallest block being a building with roof. These are all in good used condition. There is some minor edge and corner wear, but no tears, marks or missing graphics. A quality set of stacking toys for your young train or Thomas enthusiasts! Please see photos for more details. Largest block is approximately 5 1/4" across, while the smallest is under an inch.