GraviTrax Expansion Hammer by Ravensburger Science > Biology > Telescope 6 (16cm) long and 2

6 (16cm) long and 2 (6cm) wide

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

Build one of two large house and home themed puzzles (60x43cm)

plus 4 minifigures

When they role-play imaginative adventures with the boy

GraviTrax Expansion Hammer by Ravensburger Science > Biology > Telescope 6 (16cm) long and 2Add 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