These trade / wholesale packs of door handle springs are available to the general public as well as tradesmen. The product title gives the number of turns eg. (2+1/2)T followed by the diameter/thickness in mm. The thickness is the height of the spring if it were laid flat. We post First Class within 1 working day. UK shipping is a flat rate of £1.95 irrespective of the number of items in your order. All prices are inclusive of 20% VAT. A VAT invoice is sent with every order.