ave the trouble of drilling a hole on the concrete, and having a hook sticking out of the floor, with this top quality made in USA Outslayer sand bag. Go head, use it for a double end ball or any size punching bag that has a hook on the bottom. Seams are sewn 3 times with heavy duty tread. Easy zipper closure. Bungee cord included. Measures 15" x 15" x 5" height.You will absolutely love this sand bag or your money back guaranteed!