PRIMARY CHAINCASE GASKETProud to supply High Quality UK Manufactured components. FITS :A7 A10 SWINING ARM MODELS1954-1963BSA Part No 42-7507May also suit some othersBuy with piece of mind. Item will be posted in a hard back envelope to prevent damage occurring. PAYMENT INFORMATION Payment by Paypal only immediately upon clicking the Buy it Now Button SHIPPING INFORMATION We offer free shipping on all our products via Royal Mail 2nd Class Post. RETURNS POLICY If you are not satisfied with your purchase please return it within 30 days in a re-sellable condition for a full and prompt refund.We can only refund items that have not been used or damaged during this time.