Naturawls Beef Pizzle is a hard beef chew.
Available as single 12" or 2 for 1 (use 'Size:' drop down to select desired size choice)
Single 12" are very dense and much longer lasting
The 2 for 1 are still 12" each but much thinner and more suitable for small dogs, they can also fairly easily be broken in half or to a more desirable size for small dogs