Acceleration Helper From my experiences I have found that a 56-hole diameter parachute can produce 12 to 33 pounds of resistance. Plus the vitesse is fast, plus the resistance will be eleve Comfortable to wear High-quality adjustable nylon belt, adapts to high-resistance stretches, adapts to all sorts of tails (20 to 42 pockets) for men, women et enfants, pour obtain le meilleur tat Facile transporter Le poids total d'a seul parapluie est d'environ 200 g. It is a light and fine design, a rapid stockage, a gain in temps, it is concentrated on the training and it is integrated at all times in the training program Applications Le parachute d'entranement convient all sports Who needs training in explosive force and acceleration, such as athletics, football / soccer, basketball, skating, etc. Gift Preferred Running Chute is a professional fitness product En plein air la mode et cool, qui vous fait you feel plein de plaisir pendant votre entraement.C'est le premier choix pour des cadeaux sains Functionnalits: Entranement en rsistance, augmentation de la puissance explosive, de la vitesse et de la force du noyau Fournir la canope de rsistance peut tre ajuste, de sorte que nous puissions fournir des besoins diffrents selon l' individual (To assure the durability, the products do not pass on the sun for marcher) The unit fully functional includes a parachute and a strap with a velcro fastening Les panneaux en maille assurent the stability and reduction of vitesse changes The chute is at the beginning of the course and it is fixed with a harnais de rglage facile The blood to rapid release allows a release facility In case of survitesse It is easily replied for having dans le sac de transport inclus Selon la vitesse, il peut fournir 5 a 15 kg de rsistance. The taille ouverte is 56 "x 56". Ceinture adjustable pour all types d'utilisateurs. Comment utiliser l'article Veuillez attacher la ceinture autour de votre taille et courir aussi vite que possible. Plus you courez vite, plus you obtain de rsistance.