Meanhoo Bicycle Carrier Rack Pannier Bag for Cycling ;Quick Rlease Rear Seat Carrier Bag Double Mounting Pannier Bag with Multi -Compartments About the shipping by USPS just need 7-15 business days.Package Set :1x PCS Bike bag - Black.We promise order now with provide a Lifetime Guarantee. 3M reflective trim - 3M Scotch Lite reflective trim ensures night time visibility. This Award Winning Taipei Cycle Clip-on System Carrier has all of the advantages of a PakRak clip-on bag while utilizing your existing carrier rack and having mini panniers. The carrier bag will fit most bicycle carrier frame-mounted racks (adaptor bracket and parts included). (Note: bag will not work with seatpost-mounted racks because panniers need to be securely strapped to rack (see pictures). Carrier bag is top-mounted, and useful for weekend bike outings and commuting to work or school with mini side panniers.