The SKLZ x Barstool Golf Gold Flex Trainer improves swing tempo, strength, and flexibility. It's a favorite of many golf pro's for warming up and tempo training. •10-20 swings every day will improve swing tempo, strength, and flexibility •Easy to use - simply "swing" the Gold Flex back and forth continually without stopping at impact position, as if swinging to a metronome •Fights slices and flattens the swing •Low-impact stretch for pre- round warm-up •Fits easily in golf bag – legal to carry on course •Best selling golf swing trainer This product is sold and shipped directly from GolfGalaxy.com