Estes 303085 BT-20 Body Tubes (4)

Suitable for Ages 10 & Older with Adult Supervision for Those Under 12. FEATURES: Strong and lightweight tubes - Used for custom model rockets or repair work - Plain brown tubes with a thin wax coating - Can be cut to needed length - Works with the NC-20 nose cone - INCLUDES: Four BT-20 Body Tubes - SPECS: Inside dimension: .710" (18mm)Outside dimension: .736" (18.7mm)Length: 18" (45.7cm)COMMENTS: Use tube couplers to join tubes or to support tubes while cutting to length. « less