This sealer bottle has a precision-formed stainless steel tip that delivers the right amount of sealer without marking the edges of the vinyl seam. The shape of the tip forms a fin that rides on the seamline to ensure that the sealer is delivered directly over the seam. Directions for usage are printed on each bottle. The bottle holds up to 6 oz. of the manufacturer's sealer. No sealer is included with this bottle. Net weight: 2 oz.