HELPFUL ASSISTANT- The classic design of this classic home remedy. Treating sore muscles, stress or arthritis, aches and pains, stiff necks, lower back pain, and other common aches.Product name: water injection hot water bottlematerial:PVCsize:Liner:12.5*18cm, cover: 14*22cmprompt:1. Please check the size before buying. Due to manual measurement, there will be an error of about 0-3cm, please understand2. The product photos do not contain items other than the product3. Please note that due to different monitors, there may be slight color difference, please understand.4. The above data is for reference only, the size is manually measured, each variable may be different, please refer to the actual product, thank you.5. If you find any problems with our products, please feel free to contact us via email, we will solve the problem as soon as possible.6. Welcome your sharing and feedback so that we can provide you with better products and services.7. Thank you for visiting my store, click to enter my store, there will be a lot of products for your reference, logistics, generally we will ship within 1-3 days, and the estimated arrival time is 9-15 days.