The Stroops Slastix Pro: The flexible resistance bands. The Stroops Slastix Pro are resistance bands that are coated with nylon. The coating protects the tubes from external influences. The two bands are made of latex. Each end has handles for optimal grip. At the other end of the fitness trainers, loops are integrated. These allow for attachment without additional fastening materials. Training level: fitness training and therapy. Exercises: coordination, strength, speed. Product type: resistance bands. Material: latex. Pull strength: super heavy. Color: orange. Length: 1.20 m.