Material: Made of high-quality latex, ensuring durability and resistance Resistance Levels: Offers 36 adjustable assistance levels, from 10lbs to 360lbs Design: Features shoulder to heel bands, providing superior muscle engagement Special Feature: Includes resistance bands with adjustable assistance levels for steady strength gains The Vertical Blitz Resistance Bands by HoopsKing are designed to help you improve your vertical jump through incremental resistance training in 10lb increments, ranging from 10lbs to 360lbs. These heavy-duty latex bands are available in a variety of packages, each with its own set of resistance levels, allowing you to choose the bands that best suit your needs. The shoulder to heel bands offer several advantages over waist to heel bands, including maximizing muscle engagement and providing a more natural feel during exercises. These bands are perfect for youth, junior high, high school, college, and professional athletes looking to bring elite training to the field. For best results, consider using these resistance bands in conjunction with dumbbells. Please note that proper care instructions should be followed to ensure the longevity of these bands.