... , wear resistance Quick Details:Type:silicone kitchware Material:food grade silicon rubber Certification: ISO9001:2008,SGS,ITS,FDA,LFGB Place of Origin:Guangdong China ... 4. Hardness grade range:30,40,50,60,70,80 or IRHD;5.Certification: ISO9001:2008,SGS,ITS,FDA,LFGB;6:OEM ... is highly welcomed,if any. 100% food grade silicon kitchenware