5.38" Airframe Tubing 34" Long: Very strong yet light weight fiber tubing specially crafted to our rigid specifications for close tolerances, working ease and durability. ID = 5.38″ OD= 5.54″; Length = 34″ – 580g weight. This Heavy Duty Airframe combines strength with light weight. Closely wound Glassine overwrap makes painting easy. Fits PNC-5.38 and PNC-5.38L nose cones