sliders for vario of motorcycle or scooter

Here is the 3d design if you want to print your sliders, is 100 procent sound,
are tested, and are being considered at this moment in my own scooter
as an upgrade to the standard round rollers.
directly hand-rendered from a trademark product i find too expensive (60 euros)
so i'm cheap, sue me

edit; you might want to print this upside down, for obvious reasons