New and improved with the "Secure-Top" design, the Small Caddy guarantees you will never lose a bottle of floatant. Simply unscrew the top off of your Aquel, slide the bottle into the elastic loop, fold the "Secure-Top" attachment over the neck of the bottle, and rescrew on the cap. Your floatant will be hanging upside down, always ready to use. Holds 1/2 oz. bottle of Aquel, Royal Gel, or Henry's Sinket.