Astronomy folks with larger telescopes, this 250mm inner diameter tube ring is exactly what you need for mounting your scope!
Made from durable plastic that's lightweight yet strong enough to securely hold your telescope tube.

The hoop design works with both refraction and reflection type telescopes, giving you a solid mounting point for your optical tube assembly.

The 250mm size is perfect for larger scopes that need substantial support.

Installation is straightforward - the ring clamps around your telescope tube and provides a stable platform for attaching to your mount.

Much better than trying to rig up something homemade that might not hold securely.
The plastic construction means it won't scratch your telescope tube like metal rings sometimes can.
Perfect for DIY telescope projects or replacing damaged rings on existing scopes.
Whether you're building a new telescope from scratch or just need better mounting for your current one, this ring provides that professional, secure connection between your scope and mount.
Your telescope will stay firmly in place during observing sessions, and you won't have to constantly readjust alignment.

For serious amateur astronomers with larger instruments, having proper tube rings like this makes setup and use so much more reliable and enjoyable.
