Canvas Wing Chun Wall Striking Bag one-section with real cow leather Wing Chun Kung Fu Sand Wall Bag with Hanging D-Rings (sold Un-Filled) Wingchun Classic Boxing Sand Bag WCR001 Heavy Duty Canvas Interior, Hight Quality thick Real Cow Leather as on front Double Sided High Quality and comfortable Striking leather surface,special for the real cow leather give you a real fight feeling Suitable Size :11"width x11" length / approx.(30cm x 30cm) Professional Wallbag For Wing Chun Cun Quan and Shaolin Tie Sha Zhang Practice Fast Shipping From China by ePacket(usps in usa)(8-14Days to your door in usa)