This is a training parachute that utilizes air resistance. Perfect for building muscle strength ♪ Go to a place with a headwind, It adds resistance to your running by utilizing air resistance, allowing you to naturally build running muscle strength! For track and field, soccer, futsal, basketball, etc. Aiming for training, speed, and muscle strength, it improves explosiveness, jumping power, explosive power, endurance, and power during running. Color: Black Material: Polyester Size: 145 cm * 145 cm Weight: Approximately 200 grams Resistance: 5-15 kg Applicable size: Waist 70-90 cm (Slightly adjustable due to Velcro) Resistance parachute, training, resistance parachute, speed umbrella, short distance, track and field, soccer, lower body, muscle strength, strengthening, training parachute For strengthening leg strength! Easy to care for! Perfect for gifts! An essential training tool for field sports! It's soft, so it also helps prevent injuries, and it's easy to care for, so we recommend it!