RelievePressure, Improves posture and relieves pressure on a tender Coccyx when seated Supportive Foam, Generous foam inner for improved comfort Designed, The 11 degree angle is widely accepted as producing the optimum sitting position and can be used in cars, offices and homes Easy To Clean, Removable cover can be washed Gret Gift Idea, Makes for a great gift or present aid for men and women of all ages for birthdays, Christmas, Mothers day, Fathers day