Silica Gel : 1)Silica gel is derived from sand and ONLY absorbs mosture.If not enough is used then there is still moisture to support mold growth and if thesachets are not keep perfectly dry before use they will be ineffective when packed wiht shoes or other products. 2)Silica gel contan toxic substances.For example:DMF.It will harm the skin. 3)Silica gel will be a clear health dangerif the silica gel is ingestedby workeror comsumers.Anti-mold chip: 1)Anti-mold chip will both absorb moisture and inhibitsbacteria. 2)Anti-mold chipis DMF FREE 3)Anti-mold chipis no danger to the consumer.Material:made of food grade quality components in a recyclable low-density polyethylene (LDPE)base Package:each roll of Stickers comes in a vacuum packed sealed foil pouch Usage:stick in shoe box for anti-fungess/mold/mildew/moisture/bacterial Advantages 1.100% environmental friendly 2.DMF free 3.The anti-mold agents volatilize and completely surrounds the protected objects in their packaging environment, which will inhibit or eradicatethe growth of mold ,bacteria anf some pests 4.Used at the time of final shoes packing in one box.Protect your leather goods from your leather goods from mold and mildew.Safe for consumers and worders when used as directed. 5.Our anti-mold chip is originally a food-grade mold prevention product,complianted with EU Standard 6.Our anti-mold agent is derived from various plants using biotechnology. 7.Eliminate odors and leaves product semlling fresh. 8.Easy to use:Stickers and sheets is a simple one step process.Just place the stickers or sheets in the boxor polybag as directed in our instructions.There is no need ofr any extra spray or special equipment. We have our produce factory! o we can supply good quality and competitive price for you! Welcome you visit our factory! If u r interested in our products ,pls don't hesitent to contact with Mr Ziwen Chen/Landy Lin Tel:0086-595-85002222 Fax:0086-595-82932222