Skin Friendly Material: castor oil bandages are made of long-staple cotton; This natural fabric is known for its excellent water absorption, non irritation, and ability to come into close and comfortable contact with the skin, providing excellent comfort and breathability; Note: water based drugs or drugs that are too dilute need to be applied with gauze or absorbent cottonQuality Materials: the middle layer of the self-adhesive castor oil bandage is a leak proof film, and the outer layer is a breathable and flexible fabric; Castor oil packs can be applied with gauze or absorbent cotton, and the maximum absorption capacity can reach 5 timesMulti Size Packs: 5.9 x 7.9 inches/ 15 x 20 cm packs fit for Liver, waist, back, belly; 4.7 x 5.9 inches/ 12 x 15 cm packs fit for neck, are, knee, calf, etc. 3.5 x 3.5 inches/ 8.89 x 8.89 cm packs fit wrist, foot, and small area; 3.1 x 3.1 inches/ 7.87 x 7.87 cm packs fit for joint, wrist, arch, and small area; With rounded corners, the castor oil wrap is more close to the skin and are not easy to fall off; With flexible fabric, the packs will bend with your movementsSafe and Reliable, Easy to Use: castor oil pack set is here to help you get through your day with discreet, relax muscles, increase circulation, help you get a good night's sleep; Convenient at home and at travel useNo Shifting and Wear It Anywhere: the castor oil patches have strong adhesiveness, can be firmly adhered to various parts of the body without displacement, and has a double anti oil leakage design; This allows you to use these castor oil patches while sleeping, working, or even doing yoga