Semroc Body Tube BT-5(ST-5) 7.0" Long Punched SEM-BT-5-70
Spiral Wound Tube with White Glassine Outer Wrap
OD: 0.543"
ID: 0.515"
Thickness: 0.013"
Punched or Lasered at 1.5" for a mini motor engine hook
Used in the Semroc Gyroc
Made in the USA