First of all, there is no gunpowder inside this product and that is just one guarantee Cuff-Daddy can give you. Secondly, this pair of cufflinks is a perfect gift choice for a family member or for someone you know who is serving in the military. This unique pair was manufactured using silver as the choice metal which is then formed into miniature hand grenades using a ready-made mold. For a personal touch, our skilled craftsmen buffed up these babies by hand and gave it a satin finish to prevent unwanted tarnishing. Last but not the least, we included our lifetime product warranty to serve as our final guarantee that this set will surely last for generation in your collector’s box.