... collecting ash, never burnt, food grade silicone, and nontoxic. it is flexible and good feeling-touch; Nm treatment, anti-static ... silicon raw material, soft feeling, durable and tensile of its physical characteristic,100% silicone heat-resisting, cold-resistingQualityISO, SGS, ... 5 times before shipping.Daily output5000pcs/day/set mould.Packing1PC/OPPDesignOEM designs are welcome sample finish in 5 ...