Planet Earth Silk Ply is an 8-ply, 100% Silk strandable thread and comes in 14 yd skeins. This thread is suitable for all mesh sizes. Use 4 ply for 18 mesh and 6-8 ply for 13 mesh. If we are currently out of stock, or you need more than we have in the same dye lot, we are happy to create a special order. Email your request to info@creativeneedlearts.com