Henrys Coral Snake Yo-Yo and Book (Black) Henry's Coral Snake yo-yo features an aluminum body, thick rubber outer ring and their AXYS system This is the first model to come equipped with Henrys Speed Explosion ball bearing, giving a very stiff looping response. The AXYS system lets you switch out the axle, either for the wooden fixed axle Shockhead or the Slider ball bearing for string play The Yo-Yo comes complete with a book of tips and tricks Suitable for ages 6 +