MiniONE Balloon Button Kit with ENFit, 20 fr x 5.0 cm. Silicone, Beige Bolster Port.The MiniONEBalloon Buttonhas an internal retention balloon with an exclusive apple shape that keeps the device in place. For insertion and removal, the balloon can be inflated and deflated in either a clinical setting or a home-care setting. The balloon fill valve on 16-24Fr devices is compatible with a slip tip syringe.