Downtown Pet Supply Himalayan Yak Nugget Dog Chew, 100% Natural Dog Chews, Value Pack YAK NUGGET: Premium Dog Chew for Dogs of All Sizes, Multiple Chews 0.8 to 1 lb (Value Pack) PUFF IT UP: Microwave nugget for 30 seconds, it will puff up to twice its orginal size, let cool. For multiple pieces, microwave for 40 seconds or try our already microwaved Puffs ANCIENT RECIPE: From The Himalayas - 100% Natural made from Yak & Cow Milk with Salt & Lime Juice ALL NATURAL: FDA Approved & No Preservatives WARNING: Do not feed to dogs without microwaving first! Microwave time depends on power and pieces.