Ballast spacers for your ballast tubes. These spacers allow you to run a partial ballast load and keep your ballast from sliding around.
3D printed spacers are light but strong. We like to radius the corners and add a 3mm hole down the middle. This helps to keep the lightweight spacers from getting stuck, and if they should, the hole makes it much easier to capture them with a screw.
Let us know, we can produce them fast to meet your needs. Round, square, whatever!
Sold as a pair.