Canadian Brand. Rollover Small Porkhide Twists are 100% digestible porkhide, made from the inner layer of pork skin. No chemicals are used in the processing of these chews and porkhide is a much healthier alternative to traditional beef rawhides. These high protein, low fat twisty chew treats are a great way to help clean the teeth and soften as they are chewed, making them an excellent choice for all small dogs from puppies to seniors. Each Small Porkhide Twist is approximately 5" in length and 1/4" in diameter.