High QualityThe doughnut seat cushion is made of elastic non-slip material PVC material, durable, non-toxic rubber smell and easy to clean. Super ComfortableThe round cushion can help users sit more evenly, increase comfort, promote blood circulation, and reduce the pressure on the tailbone and buttocks. Ergonomic Seat RingErgonomics, designed to relax the tailbone, pelvis, perineum and spine. Pain relief through prostatitis. Speed up the healing of the injured area. Very practical after surgery Easy to CleanThe outer cover of this cushion is made of polyester fiber, which is hypoallergenic and can be cleaned, providing you with a safe and clean cushion. Wide Range of ApplicationThis inflatable seat is suitable for home and office use. If you want to take a vacation, you can also drive or fly on vacation. You can also use it as a gift for family and friends. Material: flocking and rubber Outer diameter: 34 cm Inner diameter: 12 cm Dimensions: 34 x 12 x 9 cm Pump size: 18 x 3 cm (Due to the manual measurement, there will be an error of 1-3 cm.) Color: coffee,grey,red,blue (optional) (Due to the different monitors, there will be some color differences.) PACKAGE INCLUDES: 3 x Inflatable round seat cushion 3 x Pump