The Ultimate Gerbil Wheel

The Ultimate Gerbil Wheel has been designed from the ground up to be silent, stable, comfortable and safe for gerbils. All the wheels I've found on the market so far have serious flaws, so this addresses all of that. Features:20cm wheel, which is large enough to prevent their backs from arching while running comfortably.Embossed knurling for perfect grip on the inner wheel. Other wheels either slip or can trap their little toes.Dual bearings for stability and silent running. Two gerbils can run side by side.Requires no separate hardware apart from two 608 bearings which can be found cheaply on AmazonIncludes optional multi-colour spiral effect on the insidePrint instructions:All parts printed at 0.20mm height, except for the bolt and nut, which should be on the finest setting.Print with PLAThe stand should be printed with 5 walls to ensure it's rigid and doesn't wobbleThe Outer Bearing Hub with the two pins requires minimal support and should be printed with the pins facing