Gravitrax compatible stackable spacer

I designed this spacer to be able to build directly above the track. These stackable spacers are used in combination with my basic tile which supports all the awesome inlays from Oostmeijer.

Supported heights: 10mm base tile + 20mm, 30mm, 40mm, 50mm, 60mm, 70mm, 80mm, 90mm stackable spacer