Multiple sizes: Each pack contains 4 patches of different sizes, 7.9*7.9inches, 3.9*4.7inches, 3.15*3.15inches, 2.4*2.4inches, suitable for all parts of the body, whether it is shoulders, back, knees, ankles, you can find the right patch size.Leak-proof design: Castor oil patches leak-proof sponge ring design and PU waterproof layer can easily lock the oil, providing you with a more comfortable user experience. Compared with traditional reusable castor oil packs, our castor oil pack umbilical cord patch is disposable, cleaner and safer.Self-adhesive: Castor oil patches avoid the greasy feeling and trouble of traditional castor oil application. Just tear off the release paper, apply a few tablespoons of castor oil on the cotton pad, and then stick it on your belly button.Safe and Breathable design: Castor oil packs are made of high-quality spunlace cloth and organic cotton, which are soft, breathable and excellent in water absorption. Organic carstor oil patch not only absorbs castor oil efficiently, but is also gentle on the skin, reducing the risk of irritation.Relieve joint and muscle pain: Castor oil patch allow the body to have more complete contact with castor oil, allowing castor oil to penetrate the skin, promote blood circulation, and relieve pain and inflammation. Castor oil packs can help relieve joint and muscle discomfort caused by long hours of work or strenuous exercise.