KC VideoMax (SD) Dual Port Main Body with S Front, with Mirror Diverter, Delrin Tripod Spacer, and Variable Iris Diaphragm. Does not include camera mount adapter (see below). - Infinity Photo-Optical Company
5mm C-Mount Spacer - BACK-BONE
Tether Tools TetherArca Cable Spacer for L-Brackets by Tether Tools at B&C Camera
Rosette Spacer Standoff (Large) — Wooden Camera
Blink Doorbell Camera Mount Spacer for Dutchlap Vinyl Siding - Etsy Finland
Aluminium C-mount 5mm Extension Tube Adapter C-cs Mount Adaptor Spacer Ring For Cctv Lens Digital Video Microscope Camera - Microscope Parts & Accessories - AliExpress
Best360 Magnetic Camera Mount And 10CM Aluminium Spacer – Best360 Shop
Camera Spacer Filter Adapter STEP UP Rings for All Cameras. SET OF 4 SIZES. New. | eBay
Astro-Tech 20mm T-thread spacer ring for DSLR and CCD imaging with 42mm Threads | Astronomics.com
Wooden Camera Rosette Spacer Standoff (Large) 220300 B&H Photo
5mm Spacer to Convert C-Mount to CS-Mount Lens Adapter Ring Extension Tube for Microscope Camera | Boli Optics Microscope Store