Size is 19cm. I'm selling these because my child has outgrown them. Perfect for water play, the pool, swimming, camping, river play, etc.! Stored at home after being cleaned. There is some wear and tear, some stains that couldn't be removed, and scratches. Please check the condition in the photos and understand before purchasing. Will be shipped in a simple package without the box. ◎ If you purchase with other items I'm selling that can be combined, I will offer a small discount, so please let me know in the comments☆