Looks like a #3 flexible friend. Similar to a #2 Camalot.
But I'll guess also and say it looks 2.5 ish.
If the cam width is about 2.5" then it's an old-style #3 Friend. If it's about 2" then it's a #2.5. Based on your photo it looks like the former.
It's a #3 flex-- sell it ?
I just bought a set of seven of these, and the one in the pic is one of them. The others are the same brand, just different sizes and colors. I cannot find a size or range for any! So these are Wild country Friends?
Could be clog. look down the chart
easy...2 1/2 tech. friend
Looks like it lacks the nylon sheath so its a "flexible friend" not a "technical friend." Jim