That's my stack of index wheels. IronfireLLC is the yellow one made of some sort of really tough flexible plastic. Had if for more than 10 years. Around $25 I think. A good wheel that's very inexpensive. Alisam is the blue aluminum one. Comes with the index pin alignment bar. About $100. I made my own flexible index bar that I much prefer to theirs. The bottom one is my homemade jig. About 50 cents. Works just as well for some things. I can draw as many index lines as I want. If you want 13 or 27 or 41 or some other index that doesn't come with the more expensive ones I can do it with that one. All of mine are for 1 1/4 spindles but they make them for 1"
I've been using them for the Galaxy mirrors.