Product Description The Trainer is the ideal tool to perfect your swing so you can get the score you want, every time you step onto the course. Use it when or warming up before a game and get a low-impact stretch for easier mobility. With a weighted head made of durable polyurethane, and a flexible fiberglass shaft, you’ll build muscle and power with every swing. Work the fundamental core golf muscles, and tone your obliques as you gain muscle memory. Let your perfect swing become more of a habit, and less of a practice. Simply swing this training aid while learning lag and elimination of early release. Available in either 40” or 48" in length with a 2.5 lb. head, this flexible weighted trainer encourages a flatter swing plane and forces the downswing to be initiated by the lower body, helping to reduce slices. The 48” is recommended for individuals 5’6” or taller, or those who are stronger and more advanced in their golf game. The 40” length is ideal for those who are under 5’6” or who are at a beginner or intermediate level. Made of high quality, durable materials, you can feel confident that you will be able to use the Golf Trainer for years to come. Investing in high quality sports equipment and training tools, means you’re investing in your athletic goals. Specification: Brand new and high quality Color:Yellow,Blue,Black,Red Size S（40 inches): 101*7.5cm(39.76''*2.95'') Weight: 0.75kg Size L(48 inches): 121*7.5cm(47.64''*2.95'') Weight: 0.88kg Diameter of the Head: 7.5cm Main Material: Natural environmental protection rubber Environmental shaft, rod with super elasticity, automatic springback,High-tech composite materials. Yellow ball swing head, aggravating the ball head, improve the swing feel,improve the arm strength, exercise the waist muscle. Adopting new environmental silicone material, non-toxic odorless. Longer swing, safety, warm-up, exercise your muscles, easily feel. Left and right universal, double color non-slip grip. Beginner practise essentials, highly recommended.