Ravensburger GraviTrax Ball Sling Expansion Set

Your marble run constructions will have high-speed launching power thanks to the Ravensburger GraviTrax Ball Sling Expansion building kit. Your marble can move farther and reach new areas of your track thanks to the sling action feature, which accelerates it forward at an amazing rate. This fascinating add-on, which is meant to be used with the GraviTrax Starter Set and related expansion packs, fosters exploration and innovation. It promotes STEM learning by using hands-on play to illustrate gravity, force, and momentum concepts, making it ideal for kids ages 8 and older. Make even more exciting, action-packed track designs by expanding your GraviTrax system. 

Delivery Costs, Ireland and Northern Ireland

• Free delivery on orders over €70. Under that, delivery is €7.
• Large items — go-karts, swing sets, playhouses and the like — are delivered free of charge, anywhere in Ireland and Northern Ireland.
• International delivery is calculated at checkout.

Delivery times

Order before 1pm, Monday to Friday, and your order is usually on its way the same day. Most orders arrive the next working day, and nearly all within two. Very occasionally — during busy periods like Christmas, or if our courier runs into a delay — it can take a little longer, so please allow up to 5 working days.

Bulky items

We deliver large items ourselves rather than hand them to a courier, so they arrive properly and in one piece. That takes a little longer: please allow 1-2 weeks. We'll give you a call to arrange a day that suits you.