GraviTrax Expansion Hammer by Ravensburger Science > Biology > Telescope Whether it’s a quick rest

Whether it’s a quick rest or a comfy reading spot

Multiple place settings

This not only looks proud and majestic

Instructions PLUS is an interactive guide that makes building this model extra fun

plus 4 minifigures

GraviTrax Expansion Hammer by Ravensburger Science > Biology > Telescope Whether it’s a quick restAdd some speed to your GraviTrax with the Hammer Expansion. If your gravity spheres are decelerating, this hammer will launch the spheres through your track with some much needed velocity. More product information Experience the power of gravity! GraviTrax is the all new STEM track system from Ravensburger! The GraviTrax Hammer will add some much needed velocity to your track layout. If the gravity spheres have slowed to a crawl this Hammer will smack