Upgrade your reclaimed boxes and bags by adding sturdy wire handles. Use 2-3 mm...

https://sophiasparklemaids.com/what-tape-works-to-start-a-handle-wrap-without-it-sliding/

Upgrade your reclaimed boxes and bags by adding sturdy wire handles. Use 2-3 mm galvanized wire for strong, rust-resistant grips that last. Drill 3-3.5 mm holes for a snug fit that won't tear your materials