size: 1 sqm ,2,sqm,3sqm,3.6 sqm,4 sqm,5sqm ,6 sqm .7sqm,8sqm ?..(up to client's demand) Flying line: Dyneema line /Kevlar line (two handles) four lines or dual line (up to client's demand) sail: ripstop nylon /nylon Frame : air Packing :pvc bag /Nylon bag/ Backpack (up to client's demand) Client's design and logo is welcome Please give us your demand ,and we will send you the quote sheet as soon as possible.if you have no idea of your demand ,we just send you the quote sheet with our common material and specification .