![Exercise Ball [gif]](/preview/0/34/348245.jpg)
![Exercise Ball [COMIC]](/preview/0/78/784394.jpg){kind=small}
![The exercise ball was developed in 1963 by Aquilino Cosani, the first ones were much smaller and used in treatments for infants and newborns. [wikipedia]](/preview/0/91/912829.jpg)
imgur.com category @Grotlop
Alexis Ren and her exercise ball in socks (x-post /r/girlsinyogapants)
gfycat.com category @throwawaysocks
![Eriri on an exercise ball [Saekano] (x-post /r/SawamuraSpencerEriri)](/preview/0/164/1641647.jpg)
Eriri on an exercise ball [Saekano] (x-post /r/SawamuraSpencerEriri)
imgur.com category @chazz__reinhold
First post here. Don't have a witty title. It's just me on an exercise ball.
imgur.com category @Ghostymost
