The Mould King Double Helix Rollercoaster from the Kingland series offers a fascinating building and riding experience consisting of 2,174 clamping blocks. The 55.7 cm high tower features two interlocking spiral tracks in the shape of a double helix. An integrated worm gear serves as a lift for the cars and can be operated either via the supplied electric motor or by a hand crank. As soon as the motor is running, the cars circulate independently through the upward and downward spiral. The dynamic track is complemented by a detailed pirate-themed backdrop complete with a ship, palm trees and building elements on two base plates. Printed assembly instructions provide a structured guide through all the assembly steps.