Balance Pad is a very popular item to train your balance and strength of small muscles. It introduces slight inbalance to movements, making some balancing pose more challenging. Training with a balance pad is extremely useful for people that always twist their ankle, or fall on the floor due to weak balance.

Aside from that, it can also be use as a low padding for your knee and as a perfect companion for pigeon pose.  Made with TPE material with no nasty smell. 

Don't underestimate these simple exercises. Using a balance disc requires more muscle activation than performing the same exercises on a solid surface. Try this quick 5-minute ab workout with a balance disc (wobble cushion) to get your core burning.