All the letters of the alphabet in their very own pure linen sack. On top of that, we added the numbers 0-9, too. The young one can stack them, count them, learn the letters and spell the first word.
These wooden blocks are properly old-school. They are made of solid wood and not treated with anything. Their colour can vary a bit along with the natural colour variation of solid wood.
Blocks: 5,5 cm x 5,5 cm x 5,5 cm (each)
Sack: 32 cm x 32 cm
The blocks are made of solid wood without any treatment. You can remove general grime by wiping the blocks with a damp cloth. However, if the blocks get dunked in watercolour or meat stew, those stains will be difficult to remove.
The sack is a different matter. You can throw it in the wash and be merciless with it. The flax linen can take a lot of abuse.