Special Design: Twist, Anti leaking, Soft brush up Shell Material: Plastic; The flavor of Gel: Fresh Mint; Treatment Time: 20 minutes; OEM is Available, Can print your logo on the pen and customize the packaging box. Our Advantages: 1. Factory Certified by GMP & ISO 22716 2. Products certified by, CE, CPSR 3. A professional R&D team can support you to develop new products 4. A certified quality control system, the third party inspection is available