As the name suggests, the double-end bag is a punching bag that is attached to both the ceiling AND the floor using elastic cords so that the bag springs back and forth and to the side when it’s hit. The double-end bag moves faster than both a slip bag and a maize bag, thus it helps you improve your timing, accuracy and speed, especially when you practice punch combinations with it. A few boxing combos and movements you could practice are: throw a single straight shot (jab or cross) → slip → slip, as the bag comes right back at you twice, jab → cross → slip → slip, jab → cross → slip → uppercut, jab → cross → hook → wait a bit to get the timing right (it swings side to side after the hook) and throw a cross → slip → slip, jab → cross → pull back → cross → slip → slip