Use these Dab 'N Seal envelope moisteners to quickly seal envelopes without mess or paper cuts. Make quick work of sealing bulk mailings with these Dab-N-Seal envelope moisteners. The easy-to-use moisteners have a spin-off cap and a contoured design that fits comfortably in your hand and prevents spillage. These Dab-N-Seal envelope moisteners make it easy to quickly seal large numbers of envelopes with their quick-drying adhesive. Moistener pens with adhesive to quickly seal envelopes and paper products. 1.69 oz. bottle capacity. Blue plastic bottles feature a spring-valve applicator. Each pack contains four bottles. No mess, waste, or leaks. Reactivates with water. Each bottle is enough for sealing over 1500 envelopes. Moisteners are non-toxic.