Congratulations, you've found more bulk aperture seal. We use this for the aperture seal on the convertibles or possibly you want to splice in a new piece on your Saloon. This seal is also used for the Convertible top Cantrail seals. 6 yards of bulk seal does both doors on the convertilbe and 5 yards will do the forward and rear cantrail seals of the convertible top. We do not precut strips. You get to cut it up all on your own. Fronts are approx. 21" each and rears are approx 17" each. The original cantrail seal is not available so you will slice the rubber bulb portion so that it is a flap that will overlap onto the inner seal. And in answer to your last question, we use contact cement. This price is per YARD which is 36 inches. You'll have to convert your MM, CM and Metres yourself!