5pcs Stainless Steel D-Shaft 6mm Round Steel Rod Linear Rail Shaft Robot D-Shaft Industrial Robot Parts for Gobilda/TETRIX

5pcs Stainless Steel D-Shaft 6mm Round Steel Rod Linear Rail Shaft Robot D-Shaft Industrial Robot Parts for /TETRIX

uxcell 606-2RS Deep Groove Ball Bearing Double Sealed 180016 6mm x 17mm x 6mm High Carbon Steel Z1 Bearings Pack of 10

4Pcs 6mm Flange Coupling Connector, Rigid Guide Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors