These 3D printed Flextube Extensions for GraviTrax marble runs were built by the Coogelbahn.de shop on Etsy. I received these …
source

These 3D printed Flextube Extensions for GraviTrax marble runs were built by the Coogelbahn.de shop on Etsy. I received these …
source
Mega cool๐คฉ๐คฉ
Very nice part ๐คฉ