Hello everyone, I'm designing a cylindrical plastic adapter with mounting features on two ends, to grip a stiff tube from the inside. I would slide the tube on the adapter from one end, so I need to have features in the adapter that flex radially and apply internal pressure to securely hold the tube. There has to be no independent rotation of the tube, since this assembly will be rotated by a motor through the mounting points on the adapter. The problem is getting radial features that can flex and be moldable too. I'd appreciate any help or ideas. Thanks, Hank.