Bushnell Tour V4 JOLT Golf Laser Rangefinder
If they are serious about their game, any golfer would love this range finder. I use one personally after trying 2 more expensive options (not to mention trying various models owned by my golf partners over the years) and this is the best I've used. It's reasonably priced and gives very accurate distances while also being easy to use. I highly recommend this, it took at least 2 strokes off my game which any golfer will tell you, is worth far more than the Tour v4 costs.