Features . Waterproof bike panniers ideal as starter model . QL1 mounting system . Materials: Sides of PS 490 nylon material, front and back of PD 620 . For racks with a diameter up to 16 mm, reduction pieces for 8mm and 11mm rack diameters included . Top QL hooks and lower sliding hook adjustable with Allen key no. 3 . Can be used individually or as pairs for the rear or front rack (low-rider) . Ideal for use on children's/youth bicycles . Highly reflective 3M Scotchlite reflector . Mounting not required; simply adjust QL hook distance with Allen key no.3) . Can be easily cleaned inside . Dimensions: 30 x 25 x 14cm . Volume: 25L (pair) . Weight: 1210g (pair) . Sold as a pair