Our swimming resistance is ideal for swimmers of all levels, from beginners to advanced. This training device adds resistance to your swim, helping you develop greater strength and endurance. To use, fasten the adjustable belt around your waist and let the trail behind you as . It's a simple yet powerful way to take your swimming skills to the next level. Features -Color:Black -Material:Polyester+pp -Size:57.50X20.00X0.50cm/22.60X7.86X0.20in -Improves training efficiency: the swimming resistance adds drag, making swimmers work harder and thus improving the efficiency of their training sessions -Suitable for pools and open water: whether you're training in a pool or in open water, this is designed to be effective in all swimming environments -Easy to transport: lightweight and portable, this resistance can be easily carried to any training location -Adjustable drag: the resistance level can be adjusted to suit individual training requirements, making it ideal for diy workouts -For all ages: this swimming resistance is designed to be used by both children and adults, making it a versatile training tool for the entire family Package list: A set of swimming resistance umbrellas