Floatant holder for gels and tubes.
Floatant Holder Tube: This one suits products like Dry Magic, Dry Gel and other of the same kind.
Floatant Holder Bottle & Shake: This one is for products with larger diameter like Dry Dip Super, Dry Shake (powder), etc.
Screw of the cap of the tube, put the tube through the "lip" facing down. And screw the cap back on. This make sure the tube will not slide off the band and you loose it.