Recommended age: +8 years. Number of players: 1. Box size: 8x15x7,8cm. Traditional wooden yo-yo game. It consists of a circular piece of wood with a deep groove in the centre in which a string is wound, knotted to a finger, which is made to go up and down alternately. The disc is operated by shaking it up and down. Presented in a cloth bag and a retro-style rigid cardboard box.