GraviTrax Hammer - Marble run accessories Thinner • High-quality Cartograf markings included

• High-quality Cartograf markings included

INCLUDES: One Muffler Extension

#873 and the #873S Mufflers

TRX-4M bridges the gap between the small crawler scene and 1/10 scale quality and performance

GraviTrax Hammer - Marble run accessories Thinner • High-quality Cartograf markings includedNail your marble with the GraviTrax Hammer and propel fun to the next level! Add a GraviTrax Hammer to your amazing marble run and pound that marble on its journey! When your marble rolls in from one side, it triggers the Hammer to swing down and whack it forward at high speed, sending it sailing along the track. Simply reset the Hammer to propel the next marble flying through! Comes with six track pieces and makes a great addition to any GraviTrax