LeakyPipe comes to you as promptly as possible via a carrier. (Usually within a few days, sometimes overnight).  

It is delivered in rolls of 50,100, 250 and 450metre increments and you just cut it up as you see fit with a pair of scissors, or better a good pair of garden secateurs.

For the bigger rolls, (250m and 450m rolls), take the LeakyPipe from the middle of the roll.  This makes it easy to revolve the spiral out of the pipe, as you pull it away from the roll.  The LeakyPipe will then lay flat and be easier to position into place.
See also 'How do I unroll LeakyPipe?'

Small orders of connectors which are small enough to fit through your letterbox will be sent by first class Royal Mail.