This is a set of 4 aluminum double row omni wheels. They have been used on a prototype model and show a little sign of use but still have plenty of life left. This wheels come with bearing rollers and lock collars as shown in the picture.
This is a Pre Built direct drive 4WD base Programmable robot kit that uses Nexus mecanum wheels and hubs. Its a Arduino robot platform for indoor robotics. It can vector in any direction. Customized version of TP-096-004.
These ties are flexible, reusable, and adjustable for when you have delicate bundles or bundles that frequently change in size.