The well-known Advion original gel, American made. To eliminate cockroaches permanently, not just repel them. Distribute dots, each dot the size of a lentil, in corners and hard-to-reach places throughout the apartment, and you will see amazing results. There is a guarantee; if the cockroaches do not disappear, you will get an immediate refund, provided the dots are distributed throughout the apartment... There are two Advion gels for sale. The gel is 70 SAR.