
Use these T-Thread (48mm) 2" to extend back focus or ad length to 2" (48mm) tubes for astronomy. Work great.Do not tighten them too much and use just a hint of lubricant to keep them from binding or galling. Use quality strap wrench if you over tighten them with your fingers.

Black Leather Headphone Stand: Universal Headset Holder For Gaming And More - SAMDI Product
42 Review

Canvas Camera Case Bag With Shoulder Strap For DSLR/SLR Cameras - Black, Medium Size By Evecase
30 Review

Protective Silicone Cover For Samsung Galaxy Buds & Buds+, Shock Resistant With Carabiner And Fast Wireless Charging Compatibility - Fironst Case For Galaxy Earbuds 2020 (Black)
52 Review

Protect Your Earbuds On-The-Go With Small And Portable EVA Case - Perfect For Airpods, USB Drives, Cables And More!
34 Review