These Unique foil kites are a product of master kite designer Ma Qinghua from China. Look for his trade mark on each kite to be sure you are getting the orginal design from Ma Qinghua. Several designs are excellent pilot kites with lifting power for most line laundry items up to 65ft. The kites are made with a light weight rip stop nylon, resulting it flying in lower wind rates. These are kites are for experience pilots and proper tie down and line recommendation should be followed. The 7th and 8th digit on the stock number is the sqm size (2-5-8-10-32-110).