Get closer to the Quadrilla action with three gutters that make your marbles race around the outside of the coloured blocks on their way to the bottom. Hape's new Cliff Hanger 94 piece marble run looks cool and extends run-time.
Get twice the spinning out of your Quadrilla set with this amazing double-sided spiral twist. Both the concave and convex sides feature spiralling tracks, doubling the play potential.
Boost the versatility and fun of your Quadrilla sets with this four-block pack. Includes an adjustable distributor block where you choose the marble direction and three cool types of see-saw.