Tube clamps 90mm

Robust tube rings for telescopes.

The rings can be flipped open for easy telescope attachment. They are equipped with a M6 threaded bore on their flat base.
On the inner side, there's a felt layer to prevent scratches and to compesate for small differences in diameter.

Scope of delivery: Set consisting of two tube rings.

These sizes are available:

• CR 90: for 90mm OTA (No. 1699)
• CR 136: for 136mm OTA (No. 1702)
• CR 176: for 176mm OTA (No. 1831)
• CR 203: for 230mm OTA (No. 1844)
• CR 303: for 303mm OTA (No. 1874)