[Adaptive model] Used to switch the sealing ring on many cleaner equipment including safety valve, element nozzle, hose for extension pipe and iron connector SC2 SC3 SC4 SC5 CTK10 CTK20 / 2 Colour:brown Material:rubber Package Contents: 10 * O-ring rubber ring Only the above equipment content, diversified products are not included. Note: Light and diversified displays may cause the color of the object within the photo just a little different from the real thing. The size allowed error is +/- 1-3cm.