Is it inconvenient to carry OTA? Have a little trouble going out? SV211 handle bar 135mm is the solution to travel problems. It is suitable for close handling and protects OTA from damage. At the same time, it can also be used as a general dovetail, suitable for installing all SVBONY guide scopes and finder scopes, especially designed for SV198 guide scopes, which are perfectly matched and enriched in use. Strong Adaptability The SV211 CNC handle bar adopts M6 mounting screw holes, and the interface type is unified, making it highly adaptable. SV211 is designed to accept SV198 or other brands of guide and finder scopes. And it is suitable for OTA SV503 (70F6 80F7), SV550 (80F6). Specification Brand: SVBONY Model: SV211 Color: Red Material：6061T Aluminums Length: 135mm Width: 42mm Height: 39mm Net Weight: 136g / 4.8oz Package Includes: 1× Handle Bar 2× M6 mount screws 4× M4 Set Screws 1× M5 Wrench This bag uses double padding layers internally to prevent damage to telescope equipment and eyepieces and so on. An internal padded divider makes sure these astronomical accessories are never scratching each other. This bag has 4 removable internal padded divider that can store your high value telescope accessories. Installed with unbreakable ABS D-rings that are tightly connected to the bag using double stitched straps. It's also tested under heavy loads to make sure your telescope equipment is getting the safety that it deserves. Used extremely durable and water resistant 1680D polyester fabric with double layers of high density PVC padding, ABS D-rings and zipper to easily open and close the bag. PVC coated heavy duty bottom is used to protect the bag from rough surfaces This carrying case features a removable shoulder strap and hand-carry strap, so you can easily take your telescope anywhere.