Benefits (if any) of using bands around ankles?

I am sure everyone at onetime or another has used bands around their ankles. I for one used them a lot in the past. It will surely develop the armstroke it did this for me. I never had trouble with my legs staying near the surface but now everyone likes to use swim bouys so the feet will stay up. It is a true arms only thing and I prefer the bands over swim bouys. I have not used any devices of any type for years. For arms only I just hold the feet together but I seldom do that anymore. I use full stroke.

I am sure everyone at onetime or another has used bands around their ankles. I for one used them a lot in the past. It will surely develop the armstroke it did this for me. I never had trouble with my legs staying near the surface but now everyone likes to use swim bouys so the feet will stay up. It is a true arms only thing and I prefer the bands over swim bouys. I have not used any devices of any type for years. For arms only I just hold the feet together but I seldom do that anymore. I use full stroke.