Canon 600EX-RT Speedlite. I'm selling this because I switched camera brands and no longer use it. No issues with the moving parts. The strobe functions without any problems. The bounce and diffuser parts are missing, so this is for those who want to use the strobe directly or with bounce flash. I'm selling it as is, including the stickers. I've priced it lower than the market average, so if the conditions suit you, please consider it. Comes with the original case. *The plastic stand is not included.