Here are the specifications for mosquito netting fabric for your reference: Mosquito Netting Fabric with without treatment Material: 100% Polyester General Mesh: 156holes/inch2 or as per your requirement Denier: 50D/75D/ and so on Weight: approx.25gsm for 50D, approx.30GSM for 75D or as per your request Hole shape:Hexagon or Square or Diamond Insecticide Treated: Pretreated with a high quality insecticide Deltamethrin. Packing: Individually packed in rolls Available in a variety colors Origin: Fujian China Please feel free to contact us for more details. thank you. awaiing for your inquiry. best wishes, sellina