Size adjusting: -- UK J (15.50mm dia. 48.69mm circ.) Added charge of Euro50 UK K (15.90mm dia. 49.95mm circ.) no added charge UK L (16.30mm dia. 51.21mm circ.) Added charge of Euro50 UK M (16.70mm dia. 52.46mm circ.) Added charge of Euro55 UK N (17.10mm dia. 53.72mm circ.) Added charge of Euro55 UK O (17.50mm dia. 54.98mm circ.) Added charge of Euro60 UK P (17.90mm dia. 56.23mm circ.) Added charge of Euro65 UK Q (18.30mm dia. 57.49mm circ.) Added charge of Euro65 UK R (18.70mm dia. 58.75mm circ.) Added charge of Euro70 UK S (19.10mm dia. 60.00mm circ.) Added charge of Euro70