Additional Details ------------------------------ Product description: This is a replacement frame (without the bag!) to fit the Brompton S-Bag The Brompton S-bag can be identified easily as it is the one with the removable front flap (unless you have a really old one - like us - which doesn't have a removable flap .... this bag also fits that one) The frame stays inside the bag and attaches to the Brompton front carrier block It is made from aluminium and tough plastic riveted together The frame is removed from the S-bag buy undoing the two velcro straps at the bottom of the S-bag and sliding out - downwards Installation of the frame is done by pushing up the frame from the bottom (making sure it is having the right way so that the bag is resting on the wide part of the frame base) then fastening in place with the two velcro straps Brompton S-bag frame size The frame has the following dimensions (in case you are trying to fit to a non-Brompton bag): Height (including carrying handle): 30cm Height (of main frame excluding handle): 25.5cm Width: 40cm Thickness (of bars): 1.2cm Thickness (including bottom rest) 8.5cm The frame is shorter than the standard Brompton bag frame (used on the T bag, C bag and Folding Basket), making it suitable for all types of Brompton - including the S-type.