This popular Catchmaster mouse glue traps is approximately 3 1/2" x 5" each. There are four mouse glue traps total in the box. The mouse & insects glue trap is very easy to use. Just place the glue trap where the mouse or insect infestation has been seen. The glue trap can be used for mouses, roaches, ants, and other insects. The mouse glue trap is pre-baited, non-toxic, disposable, and ready to use. You can add a little piece of food to the middle of the trap to make the glue trap even more effective. Made in the USA.