MaxNitro™ Paracord Watch Band was designed tobe the ultimate combination of toughness and innovation. There is a whistle, compass for guidance, magnesium strip to light a fire and the paracord itself. There is a velcro to adjust the length of the band. The band can be adjusted to fit waist size of upto 11.5 inches. This model also boasts shock resistance for serious adventurers. The unique guide and fire function are perfect for outdoor survival.