AliMed® Universal Bean Bag Positioner uses vacuum suction to conform small, loosely packed beads to the patient's body, creating a solid foundation for safe, stable positioning. Lightweight, versatile, and easy to position with superior flexibility, precise shaping, and maximum conformity. Stain-resistant, easy to clean, and nonporous. Requires Bean Bag Valve (sold separately) and in-wall vacuum unit (not included) to apply suction. See Instructions For Use below. Not made with natural rubber latex. Available in three sizes: Small, Medium, and Full Length.Small: 10"W x 20"L • Medium: 20"W x 20"L • Full Length: 30"W x 76"LInstructions for Use: Form the loose Bean Bag around the patient in the desired position. Connect the Bean Bag Valve (sold separately) to your in-wall vacuum unit and apply suction to lock the Bean Bag in place. Unseal the vacuum valve to let air in and allow the beads to move freely again.