Pic GEL1 Roach Control Gel In Syringe, 1-Ounce 33-percent boric acid formula Fills cracks and crevices Contains 1 syringe Roach control gel in a handy to use syringe to fill in cracks and crevices 33 percent boric acid formula Effective for commercial, industrial, institutional and home use Accepted for use in food preparation areas Contains one 1-ounce syringe