Super soft and super stretchy dangly rubber mice with little beady eyes and lots of soft long spikes. Insert your finger into the loop and enjoy this fun yo-yo mouse which begins to flash once smacked and turns off automatically after a bit of time! LED lights light it up with bright blinking led light show. Comes in assorted colors. You'll love squishing this thing as much as bouncing it up and down on its cord. Total diameter (with spikes): 2 inch. Batteries are non-replaceable.