displays an excellent quality CANVAS material shell for durability and is a great way to keep in shape.It is very stable and contains very good cotton fabric .Its reinforced seam makes this bag last twice as long as most other bags and gives added endurance.The smooth design slices the air by means of quick speed and allows you to thoroughly work out with no loopholes or excuses. 52" Long with Chains-Size Large (without chain approx. 40").We Send bag without filler to reduce S/H coast.This Heavy Punching Bag also comes with a durable/strong steel chain.