Flexible dew shield for Celestron 11" telescopes. Our flexible dew shields are made from nearly indestructible ABS plastic with Velcro closure and felt lining to keep dew from dripping. Velcro closure is sewn with reinforcing upholstery thread. Dew shields come with and without notch. Un-notched dew shields are for fork and "D" sized dovetail mounted telescopes. Notched versions are for "V" style dovetail mounted telescopes.