NWT CELL BLOCK 13 Puppy Stryker Razor Tank Cellblock13 brings us a new take on puppy play.  The Puppy Stryker Razor Tank has a pup on his knees ready to play with the big dogs.   T-cut in the back, this tank is sexy, stylish, and ready for action. Small 36-38" (Chest size) Medium 38-40" Large 40-42" X-Large 42-44"