You don't have to have weights to increase hand speed. Like I said previously. Train on the bags, pads and shadow box. Learn technique and punch combinations. Practice, practice. Some days hit hard and work on technique. Other days throw as fast as you can till you can't throw no more. Little by little your technique improves and your speed increases. Just remember your body works as a unit so if you've got no footwork....your speed and power will suffer.