Note: 1. Please allow 1?2cm error due to manual measurement. Thanks for your understanding._x000D_2. This product cannot self heat or stick. It needs to be used with a hot compress brace (the hot compress brace needs to be prepared by yourself). specification: Item Type: Wormwood Pad _x000D_Material: Cotton and Linen_x000D_Size: Approx. 15 x 10cm/5.9 x 3.9in_x000D_Application: Hot compresses for shoulder guard and elbow guard. Features: 1Purpose: The wormwood pad can be put on the electric shoulder brace and elbow protector for hot compress. 2Easy to Use: Use it with shoulder guard and elbow guard, allow heat to penetrate to warm the shoulders and elbows during the hot compress. 3Appropriate Size: It has a size of 5.9 x 3.9in, which is suitable for hot compresses such as shoulder protectors and elbow protectors. 4Premium Material: This patch is made of premium cotton and linen, mesh penetration, breathable and skin friendly. 5Portable: This moxibustion patch is lightweight and compact, easy to carry, suitable for many occasion. PackageList: 1 x Wormwood Pad