PatentscharnierP10 Graupner 3340 Pack of 10. Made of a flexible hi-strength plastic/fabric mixture. The hinges are simply slipped into prepared slots in fin, stabilizer and control surfaces, with approx. 50 % of their length installed in each of these components. Pivot point is automatically positioned at the station where the two components touch each other. Dimensions approx. 25 x 19 x .25 mm