The lead used for stained glass windows is a dense, soft and malleable metal. For the edging surrounding the pieces of stained glass, the most commonly used shapes are “H” or “U”. There are also “Y” and “C” lead. This is the most widely used and popular lead available and made in the UK. Standard lead has a 5mm (3/16”) heart. 1800mm lengths. Available in individual cames, 10kg boxes or 25kg boxes ***10kg boxes are made to order, approx. 2 week delivery***