Originally it was a toy called a "finger skate" that you could play with by using your fingers like a skateboard, but I thought it would also be a good accessory for RC cars, so I bought some! The length of the deck is about 94mm. It is a little large for 1/16 scale models such as the C14 and C24, but it is just right for 1/12 scale models such as the C33 and C44, or 1/10 scale models. There is one assembled and four unassembled, so share with your friends!