Specification: Color: Black/Yellow/Red/Blue Size: S(40FT)/M(48FT) Package:1 pcs golf trainer 10-20 swings every day will improve swing tempo, strength, and flexibility Fights slices and flattens the swing Low-impact stretch for pre- round warm-up Easy to use - simply “swing” the Gold Flex back and forth continually without stopping at impact position, as if swinging to a metronome 1. Perfect Golf Training Aids: When you swing the golf trainer repeatedly, it creates a low-impact stretch to increase flexibility and range of motion. The exaggerated flex allows for a lag during your back swing to help finding your tempo and warm up before a game. it is super helpful in getting a feel for momentum and power in your swing 2. Develop Your Tempo: Golf swing trainer will help to create an awareness of lag, develop and improve your golf swing tempo, build your muscle power from the core and lower body, swing plane with the heavy head and slightly flexible shaft to deliver more consistent golf shots off the tee, best essentials for the beginner practice 3. Build muscle memory: The weighted head and flexible shaft assist with weight transfer during the back swing and help align your body properly, build muscle memory and strengthen your swing. It is good way to give you more power and better control. Use this golf swing training aid 10-20 times a day to build your muscle memory 4. Durable and Elegant: Made by high quality material, this golf trainer aids is durable, strong, and made to last. Whether you’re a competitive golfer, or play leisurely with friends, This golf Swing trainer is an universal one with a rough holder, easy to grip and antiskid 5. Trainer Size Guide: The 48 inch is recommended for individuals 5’6" or taller, or those who are stronger and more advanced in their golf game. The 40 inch length is ideal for those who are under 5’6" or who are at a beginner or intermediate level