Skill Level: Advanced Rocket Specifications: Length: 22" (55.9 cm) Diameter: 1.57" (T-40 mm) Fins: Balsa. Recommended Engines: B6-4, C6-3, C6-5 Quest-3007 Retail: $15.99 Our Price: Learn about Payment Options | Security | Privacy | Shipping | Our Company. Trademarks property of Centuri Corporation, Custom Rockets, and ToyBiz Inc.