An elastic band with hook loop closure adjusts to fit a range of arm sizes or over bulky outwear. Available in 5 colors black, orange, lime, blue and red and also available in hi-vis orange and lime with reflective accent for enhanced visibility.5cm to 46cm•SINGLE AND 10-PACK OPTIONS.5in // 10cm x 6cm•ARM BAND LENGTH - 12in to 18in // 30.