4" Heavy-Duty Spiral Paper Tubes (Black) – 5 Pack

Heavy-Duty Spiral Paper Tubes (Black) – 5 Pack – Perfect Friction Fit for 37mm Hulls – Made in USA

Enhance your next build with premium-quality spiral wound paper tubes, proudly manufactured in the USA. These rugged tubes are specifically designed to friction fit perfectly into 37mm plastic hulls—rubber bands or adhesive required.

Specifications:

• Inside Diameter: 1.00"

• Outside Diameter: 1.38"

• Length: 4"

• Wall Thickness: .19"

• Color: Black

• Quantity: 5 tubes per pack

Ideal for hobbyists, DIY rocketry, custom builds,  reloaders, and other precision tube applications where strength, consistency, and an exact fit matter.

✔️ Proudly Made in the USA
✔️ Perfect Friction Fit for 37mm Hulls
✔️ Thick-Walled Construction for Strength and Stability