This is the Mission Cargo trailer which is available from Mission Cycles and their dealers. The trailer connects to the bicycle's rear axle and provides a basic mesh load area which folds for storage. The plastic box is an optional extra. The trailer can carry 40Kg on it's 45x62cm load bed. In it's basic form the trailer costs £120 plus a £6.96 delivery charge. The plastic box, complete with lid and roller wheels on the underside adds £19.95 plus a further £6.95 delivery charge even when purchased with the trailer. Mission also produce this Cargo Trike priced at £550 plus a £30 delivery charge. It can carry 45Kg in it's 88x61x52cm wooden cargo box. The cargotrike comes with 3 speed sturmey archer hub gears and a rear pannier rack. Compared with other bakfiets designs this seems to be an economical choice if you can live with three gears rather than the seven or more offered on more expensive designs by Christiana and others.