They are available in three sizes: Small, Medium and Large.
The cartoon on the front of the green one was inspired by ‘Horse Sense for People’, by Monty Roberts. Caroline Baldock worked extensively with Monty on this book. Fergus the cartoon horse takes on humankind. You can lead a human to knowledge but you can’t make him think, summed up the long years of helping to open people up to Monty’s concepts. It is always up to people to learn, you cannot force anyone to take on new ideas.
The text on the drawing is “You can lead a human to knowledge, but you can’t make it think!”