Reasonable structure, nice looking appearance, secure performance. Quick heating, positive insulation performance, high strain resistant. The product is shaped a complete set of high quality electrothermal wire. It can keep away from the phenomenon of leakage and burn out after long-term use with the technical improvement, so its life is 2 occasions than the final products. It is appropriate for water dispenser, mini electric kettle, humidifier, warm milk, heating supplies, electric stew pan, electrical heat water bottles, etc. Colour:gray Material:metal Size:diameter 17cm Package Contents: 1 * Kettle heating ring Only the above kit content, various merchandise should not included. Note: Light taking pictures and sundry displays could cause the colour of the item within the photo a bit diversified from the real thing. The size allowed error is +/- 1-3cm.