ErgoErgo Stool by Alan Heller

"I use an ErgoErgo Stool stool on a frequent basis to keep my posture in check and my core strong; it’s a great alternative to an office chair," Derringer says.  Photo 1 of 7 in Design Milk's Favorite Products in the Dwell Store by Marianne Colahan

Design Milk's Favorite Products in the Dwell Store

1 of 7

ErgoErgo Stool by Alan Heller

"I use an ErgoErgo Stool stool on a frequent basis to keep my posture in check and my core strong; it’s a great alternative to an office chair," Derringer says.