Qty 1 = you get one tweeter.
Qty 2 = you get two tweeters.
One used TANNOY tweeter / HF, suits and will fit most 6" & 8" & 10" drivers,
if it looks like this, and its a 6" 8" 10" driver ... it should fit.
If in doubt, ask me, I will look up on the Tannoy spare parts list.
Great condition, fully tested in a driver, bright and clear, no dullness.