Based on Twist Em Up’s unique “Balloon Strip” technology, the balloons attach to a roll up insert and fit snugly into the small duffle bag. The bag has a drawstring, four 5” pockets for pens, rounds, or a pump. A handy shoulder strap is also included. Each one comes with 15 balloon loops. The “Balloon Strip” insert holds approximately 600-700 balloons and the whole system with the duffle measures ~5.5″ in diameter and 14″ long. The pump can be stored inside the duffle bag.