10pcs/lot Paper Hinges /hinge Folding Leaf / Aileron Tail Wing Connector, Kt , Foam , Balsa Rc Airplane Universal

10Pcs/Lot Paper Hinges /Hinge Folding leaf / aileron tail wing connector, KT , foam , balsa rc airplane universal

a pack of 10 pieces
Paper Hinges L30 * W20 X H0.3mm (large) 
Paper Hinges L20 * W15 X H0.3mm (medium) 
Paper Hinges L17 * W10 X H0.3mm (small)

Instructions:

Open a seam behind the rudder surface and insert the paper tray into the point to apply glue (you can realize the link of the rudder surface to the fuselage so that the rudder surface can be flexed up and down flexibly.