2012 hot selling silicon tumblerful marker 1. FDA & LFGB Certification 2.100% food-grade silicone 3. -40 to 230 degree 2012 hot selling silicon tumblerful marker1) Material: imported ecofriendly silicon raw material, soft feeling, durable and tensile of its physical characteristic, 100% silicone, heat-resisting, cold-resisting.2) Packing: Each in opp/color box, 500pcs,CTN or as customer's ...