Pyramid Leads

just wondering, i can get the normal pyramid leads as in the link;
http://t3.gstatic.com/images?q=tbn:ANd9GcSCvj32iy2Y3_QfuI294e-BUWjq8Im5gDyM1gvLBK3Qv3toTIsY

but i have seen another type of pyramid the it is double sided as in the clip side is also pyramid shape, anyone know where i can get these? been searching ages and cant find them :/

just letting anyone who seen this know, got pointed in the right direction for these leads can find them here to any thats interested; http://www.seamatchfishing.co.uk/#/shop ... id/4486476