Baader 2" ClickLock 2956220 SC-clamp to 2"/SCTi – for Celestron 5" - 9¼" SC/HD telescopes)Baader 2" ClickLock SC (2") clamp, for Celestron 5" SC, 6" SC HD, 8" SC HD, 9" SC and many other SC telescopes. Fixed height. 47mm, weight: 164g A small rotation by 20 with gentle fingertip pressure to the knurled lever is enough to securely clamp every 2" accessory. Ratchet function features acoustic and haptic display of the clamp position. This way you can hear and feel in darkness without looking if the clamp is opened or closed. Compression