GN1 is a miniature (120mm) gooseneck mount, designed to help you position NT6 cardioid condenser in the exact sweet spot.
If you're reading this, you more-than-likely already know that NT6 comes with a swivel mount that gives you tremendous positioning flexibility.
By adding GN1 you also get an added length / height, allowing you to complete control over your microphone capsule placement.
Not quite what you're looking for?
We've got heaps of Rode microphones and accessories here in our webstore (plus a huge amount on the shelves in store at Factory Sound).
If you still can't find what you need, let us know and we'll make sure you get looked after.