Kittmip 48 Pack Insect Trap Refillable Glue Boards Sticky Fruit Fly Trap Mosquito Fly Killer for Mosquitoes Fruit Flies Gnats Moths Fits Most Models Indoor Outdoor Lamp(Round)Brand: Kittmip Color: white Features: Proper Size for Various Fly Lamps: these insect traps are about 11 cm 4. 33 inches in diameter, suitable for most mosquito lamp traps with circle boxes, which can be applied for the mosquito lamp traps bottoms have the diameter be equal or bigger than 4. 33 inches; Please confirm the size before purchase Steps for Usage: take 1 piece of sticky glue board and peel off the plastic film, and then place the glue board