Grippy Transmitter Stick (M4 thread, e.g., FrSky Taranis w/ M9 gimbals)

These are some grippy transmitter sticks for those who hybrid/pinch grip.

They work pretty alright, just a stopgap for myself until new metal ones arrive.

Twists right onto the Taranis M9 gimbals without problem. The hole size is M4.

UPDATE:

New version that works a bit better.