This morning we got a new toy in the post for our training room: Interchangeable with the rock rings, the lapis rolly bar is a pull up bar with a difference - the bit you grip onto rotates around the bar itself making any kind of movement on it very unstable. So while doing any exercise you have to stabilise the bar at the same time - a bit like swiss ball exercises or the rock rings but much more difficult.

Come have a go next time you're in - and here's the german national team for some inspiration...