... , 30*30cm natual color, carbonized color & dyed in series colors bamboo sushi mat, rolling mat, rice matdeatials1.material: chosed 4-year ... or Korean mat Kitchen, restaurant, hotel, camp, etcProcess & QC:Our bamboo steamers are made of chosed 4-year-old mountain Mao ... bamboo, strong and natural eco-friendly.The bamboo are steamed & boilled in very high temperature ...