... .Size: 1)Diameter:3.5cm up, Length:35cm up2)Diameter:5.0cm up, Length:40cm up3)Diameter:5.0cm up, Length: ... Moisture: <5% or <8%3..Advantages:1) Yam contains amylase,polyphenol oxidase and other substances, conducive to digestion absorption function of spleen ... to make the body stronger, nourishing kidney increase sperm role.3) Yam contains saponins, lymphatic temperament, have lubrication, moist effect ...