The RoboCup Golf Ball Return Robot slips into the cup on the practice green and returns your made putts up to 10′. It makes your practice time more efficiently. With the included Caddy Cord, even missed putts will be returned to you. Eliminates the back strain of bending over to retrieve your balls. Get your stroke in a groove and stay there until it is engrained. It’s a perfect compliment to our putting mirrors and rails. It runs on four AA batteries, which should be good for around 12,000 ball-returns – that’s a lot of saved walking over and bending over.