The optical tube carrying case is designed to safely transport your optical tube from point A to point B. This carrying case can carry your NexStar 4", 5" and 6" optical tubes as well as any Celestron 8" Schmidt Cassegrain/ EdgeHD optical tubes. The case is EVA molded to protect your telescope with a hard yet flexible shell. Your case also comes with a convenient storage zipper pocket that holds all your telescope's standard accessories with room to expand. Inside the case includes two dense foam spacers and a built-in compression strap designed to customize the case for each telescope model. This product includes a durable Nylon handle for easy transportation. Here is what this case is compatible with: NexStar SE 4" (mount and OTA) NexStar SE 5" (mount and OTA) NexStar SE 6" (mount and OTA) NexStar Evolution 6" (mount and OTA) 8" SCT / EdgeHD (OTA only) Specifications External Length: 584mm (23") External Width: 381mm (15") External Height: 356mm (14") Internal Length: 483mm (19") Internal Width: 279mm (11") Internal Height: 254mm (10") Foam Padding: 38.1mm (1.5") thick foam padding along all walls and above the accessory pouch Handles: Three carrying handles—Two cloth handles on the top and side and one extension handle for rolling.No handle or grip on the bottom where the wheels are located