Custom Silicone Custom Logo Bag Post Box Pattern Large Capacity Waterproof Pencil Case. 100% Waterproof Design: Made of high-quality silicone, ensuring complete waterproof protection for contents. Custom Logo & Color: Supports custom logo, Pantone color matching, and unique design customization. Food-Grade Safe Material: Non-toxic, odorless, and environmentally friendly silicone suitable for daily use. Flexible & Foldable: Soft and elastic structure allows easy folding and compact storage. OEM & ODM Services: Full customization options including samples, designs, and flexible manufacturing. ISO & BSCI Certified: Company passed ISO-9001 and BSCI certifications for quality and compliance. Easy to Clean: Simple maintenance by wiping with a damp cloth or washing directly with water.