Weapons develop limberness, waist power, coordination and extension of chi (your inner energy). Each weapon emphasizes a different aspect of power and movement. They also can teach practical self-defense. A few examples of this are the Chut Jeet Bin (7 section chain) is like a dog leash, the Quan (staff) is a broomstick, Duin Quan (short stick) can be a cane or just a short stick, even Seung Pei (double daggers) can be knives.