In this package you have 6 cardboard couplers useful to join together Estes tubes of the same diameter. You can build parts of your personal projects cleanly and precisely.

The package contains:

• 2 pcs. for BT5 tubes - Length 25 mm
• 2 pcs. for BT20 tubes - Length 19 mm
• 2 pcs. for BT50 tubes - Length 25 mm