Features: Easy to install: it only takes a few seconds to install the strap on your watch. The material has no harm to human skin and is not allergic, sending tools and steel needles. Personalize your device: personalize your for smart watch from work to exercise. Suitable for any occasion Using high-quality for raw materials, soft, non-toxic and odor free; waterproof and durable and has a long service life. Comfortable and flexible: The durable and soft silicone wristband can improve airflow and comfort, bringing you a comfortable wearing experience. Specifications: Material: Silicone Length: Approx. 140+91.5 mm/5.51+3.6 in Width: Approx. 27 mm/1.06 in Color: Army Green/Black for Grey/Black Red/for Grey Green/Pink Red/Red/White for Grey Applicable Models: for Polar Vantage V2 Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Smartwatch Bracelet 1x Tool 2x Steel Needles