Mosi-Off bands are ideal for providing added protection alongside Trek. These adjustable wrist (or ankle) bands are treated with dry micro-encapsulated DEET and slowly release a repellent vapour for long-lasting protection. The bands repel insects seven hours a day, for up to 14 days – great added protection for a two-week holiday. Not suitable for children under three. Available in packs of four. Mosi-Off Repellent Bands (4 pack) provide up to 100 hours of protection if returned to the bag after use. The length of protection provided is dependant on a variety of factors including perspiration and activity.