Meade #670 Dew Shield Compatible Flexible Dew Shield for Meade Etx-60AT, Etx-70AT Telescopes Meade #670 Dew Shield compatible flexible dew shield for ETX-60AT, ETX-70AT Flexible dew shields are made of non-reflective, flexible, light weight foam rubber sheeting. Flexible dew shields will not crack or dent like rigid (metal or hard plastic) dew shields. Flexible dew shields can be stored easily rolled up, lay flat or stay on the telescope. Flexible dew shields work better than rigid dew shield because foam rubber insulates better.