Ningbo Cooskin Stationery Co., Ltd., a subsidiary of Ningbo Shanhai Import & Export, specializes in beauty and personal care products under the DIONE brand, including dental flossers, electric toothbrushes, nano handy mists, facial steamers, saunas, and ultrasonic brushes. Its 14,000 m² factory, releasing 3–4 patented products annually with high quality. Certified CE, RoHS, FDA, and REACH, DIONE exports to South Korea, Japan, and Singapore.

Beauty and personal care products under the DIONE brand, including dental flossers, electric toothbrushes, nano handy mists, facial steamers, saunas, and ultrasonic brushes