Vixen Style Dovetail by ADM is designed for a Celestron 8" OTA and fits popular mounts like Meade LXD, Synta, Orion, TeleVue, Vixen and more.  Attaches directly to the OTA using the existing holes. This all aluminum, black anodized ADM Dovetail is 14" long, 1.72" wide, and 5/8" thick. The Celestron versions include two radius blocks for mounting to the holes spacing that is separated by 1.75".  All necessary hardware included.