It contains a special attractant the lure them into the sticky inescapable den from which they cannot escape. It contains no poisons and is safe around pets and children. In contrast, insects have six legs and three body regions.
Spiders also lack wings and antennae.
All spiders have a pair of jaw-like structures known as chelicerae. Spinnerets, the silk-spinning glands used for making webs, are located at the tip of the abdomen. Spiders reproduce by laying eggs contained in an egg sac. These sacs are usually ball-shaped and are generally carried by the female or hidden in webs. Most sacs contain about 100 eggs each which hatch in about three weeks.