Avenger C Stand Roller Case Contemporary It’s also the best fit It’s also the best fit for birdwatchers who are using lightweight scopes to observe wildlife and digiscoping through an additional camera and need fluid heads that move constantly USB Powered: 5V 2A Power Supply Required (Not Included) It allows them to transport all their essential C Stand accessories in one convenient carrying solution the spacious main compartment features high density closed cell and cross link foam dividers to create three sections for detachable C Stand columns and a fourth section with adjustable reinforced straps to securely stow extension arms