This alternative to the GraviTrax base block expands its functionality by adding three more inputs. Naturally, all GraviTrax inserts fit, but also those inserts originally intended for the SkyBase base block .
Do you need an intersection with a hole in the middle? Or a curved intersection? No problem!
With these inserts, you can finally reliably send balls that fall out of the Skytrax stone drops further into the normal system.
