Description: 【Material and Design】: This Badminton Racket Trainer is made of quality stainless steel with a wooden handle, ensuring durability and comfort during your training sessions 【Adjustable Weight】: The trainer features a removable weight structure, allowing you to adjust the heaviness according to your training needs. Different numbers of weights simulate the swing weight of different rackets 【Strength Training】: This trainer helps to improve arm strength, making it a good tool for badminton players who want to enhance their performance on the court 【Weight Equivalents】: Six weights are equivalent to the swing weight of a 3U racket, five weights are equivalent to a 4U racket, and four weights are equivalent to a 5U racket 【Application】: Great for badminton preheating, stretching. Convenient for indoor or outdoor sports, such as corridors, balconies, parks, gardens, offices, etc Specification: Material: Stainless steel and Wood Size Chart:Total length 39cm/15.35inch, handle length 21cm/8.27inch Package Includes: 1 Badminton Swing Training Aid Note: Please allow slightly errors 1-2cm differences due to manual measurement.