Convenient mail-back sharps disposal system. Fill containers with used needles, carpules, and syringes. For recovery, mail the container back by using the preaddressed, postage-paid return box. No long-term contracts or commitments are required. OnTraQ Enhanced is an online program used for tracking waste recovery, waste destruction, and archived documentation. The 8-gal. and 18-gal. containers are for consolidating full containers (no loose sharps should be placed in them).