It is made on 28 slates which are joined together in pairs and hang with a 10mm gap between them. It is over three meters long. I am making one for an exhibition at the Jersey Museum which is over four meters long and is made from fourteen single slates hung 10mm apart. If you are interested in seeing a preview of this piece please do not hesitate to contact me. I will email you a jpeg. The show at the museum does not open until April 2008.