Help with floats

[FraserL]

So i have been looking for floats recentley and i knew the exact one that i wanted as i already have a few. problem is i don't know where they came from as i got them from a friend. My camera is broken but i drew a (suprisingly accurate) picture of it on Paint. It is a small float made of plastic that when you push down on the top a small hook comes out the bottom, which you attach to your line.