The optional ELPWR01 safety wire was designed to help support the attachment of the projector to its mount. Featuring a 19.6″ wire and 2 carabiners, it works with both Epson and third-party projector mounts. And, it supports Epson projectors up to 33 lb.

• Added security — designed to help support the attachment of the projector to its mount
• Ready to install — includes a 19.6″ wire and 2 carabiners
• Compatible — supports both Epson and third-party projector mounts, and Epson projectors up to 33 lb

https://epson.com/Accessories/Projector-Accessories/ELPWR01-Safety-Wire/p/V12H003W01