Normann Copenhagen Rocking Glass - Set of 4Design by Britt Bonnesen The Rocking Glass is a sturdy and fun glass that you can use for almost everything. It has a specially designed curved bottom, which allows the glass to tilt back and forth without the content spilling. The rounded bottom also makes it comfortable to hold in the hand as you can both grip around the bottom or cradle it in your hand like a sphere. Rocking Glass is a great conversation piece and is a fresh take on a traditional