FiberTrap uses microfiber technology that mimics the architectures of a multi-direction spider web to ensare bed bugs. Bed bugs are drawn to the trap by its design, as well as by the use of lures. Each trap measures 3″ X 2 1/2″ X 3/4″. The product is made entirely from recycled materials and contains no chemicals. Use 5 packs for every 125 square feet; replace traps every 30 days.