Health Care Logistics Pill Envelope, 1 Pack of 250 Lamp Comb UltrViolet Infrared Improves seating posture while providing Jobst Opaque Sensitive Improves seating posture while providing back support and comfort * Durable masonite board sercured on back of foam core prevents hammocking in sling back wheelchairs * Conforms to provide support to the lumbar region * Sealed liner protects foam core from moisture * Has a non slip vinyl back to prevent the cushion from sliding * Weight Capacity: 300 lbs All four edges sealed to prevent lint residue and leaking This sealable envelope is a quick and simple way to package and dispense medications being prepared in small quantities The envelope has a write on area for patient information and instructions