1. Plush fabric, PVC gasbag, beautiful and durable, achieve anti - acne effect, used for patient. 2. The product has good elasticity (can bear 90KG) and good breathability. 3. The gasbag is made of imported materials, which is strong and durable. 4. Inflatable ring cushion is designed to reduce the weight of your ischium, thus protecting the sore area from hemorrhoids, coccyx and coccyx pain, bedsores, perineal pain, postpartum pain, etc. 5. The ring pad allows the user to sit in one position longer than usual and can be used almost anywhere! The soft fabric cover provides additional comfort.Material: PVC Non-inflatable outer diameter: 40cm Inflated size: outer diameter 37*13cm Scope of application: Prevention of acne, used for long-term bed rest. Instructions: 1. Insert the outlet of the air pump into the anti-decubitus inflator. 3. Gently pull the seal ring and highlight the seal ring. 4. Seal tightly and let go after hearing the deflation sound. 5. According to the needs of different parts of the patient, put the air cushion under the corresponding part after inflating, transfer the pressure of the part. Storage method: Store in a cool, well-ventilated room with a relative humidity of not more than 80%.Inflatable cushion*2 Pumps*2