Note: Please allow 1?3cm error due to manual measurement. Thanks for your understanding. specification: Item Type: Lower Back Heating Pad_x000D_Size: Approx. 115 x 17cm/45.3 x 6.7in (As development drawing)_x000D_Uses: heating waist, relieve lumbar pain; back pain, body cold, dysmenorrhea, lower abdomen bloating, stomach cold_x000D_Recommended for the crowd:_x000D_Lumbar discomfort; long term sitting; sprains and strains;_x000D_Advantages: Built in heating plate in the lumbar spine to relieve lumbar discomfort caused by cold weather Features: 1External Device Power Supply Bag: Let life be unlimited, use it anytime and anywhere, take it wherever you go, and use it when you go out. 2Pockets On The Side: You can put moxa, safflower, ginger and other traditional Chinese medicine packages according to your own needs, and use carbon fiber heating Chinese medicine physiother 3Relieve Discomfort: Use it to relieve back pain, shoulder pain, stomach pain, cramps, muscle aches, arthritis, etc. 4Built In Heating Plate: Heating waist wrap relieves waist discomfort caused by cold weather, brings good results and helps relieve physical discomfort. 53 Gears Heating Controller: Red light high temperature, blue light medium temperature, green light low temperature, you can adjust the desired heat gears. PackageList: 1 x Lower Back Heating Pad 1 x USB Cable