This is a fastener for handlebars that will keep the tape secure as well as look aesthetically pleasing. It has a plug that remains in the tube and a sheathe that goes over it which is secured by a button snap. It has a standard 13X6mm snap to secure the sheathe to the plug. A rare earth permanent magnet may also be used. The Sheath is made of green rubber or polyurethane and slips over the rubber plug. The fit coupled with the snap should secure the fastener quite tightly.