Features: 

• Can be coiled up for simple storage & portability
• Allow you to develop upper body strength & burn fat simultaneously
• An excellent choice for gyms, sports facilities & home workouts
• 100% water-resistant & suitable for indoor/outdoor use
• Heat shrunk plastic handles provide excellent grip & protect against fraying

Specifications: 

• Lengths: 9m (30ft) | 12m (40ft) | 15m (50ft)，other customized length are also available
• Diameter: 38mm (1.5in) | 50mm (2in)
• Made from Poly Dacron
• Black with colored tracking lines