mouse-sized

[LouissaRini]

having the approximate size of a mouse

[Angelast]

Mouse-sized generally refers to anything that is approximately the same size as a common house mouse. This term is often used to describe small objects or creatures that are roughly around 3.0 to 3.9 inches in length, similar to the average size of a mouse, not including its tail. This description may vary somewhat based on context as some mice can be slightly larger or smaller.