Instruct: Classify a review as either positive or negative.
Query: My cats love the StarChaser, after awhile gets harder to activate the lights

I got this to pair with theBergan Turbo Scratcher Cat Toy, Colors May Vary. It was cheaper than buying the one that already has the lighted ball (Bergan 70130 Star Chaser Turbo Scratcher Cat Toy and Scratch Pad - Pink). My two younger cats love it.