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

https://www.bookmarkpage.win/give-your-reclaimed-boxes-and-bags-a-sturdy-upgrade-with-simple-wire-handles

Upgrade your reclaimed boxes and bags by adding sturdy wire handles. Use 2-3 mm galvanized wire for strength and durability. Drill 3-3.5 mm holes to thread the wire through easily without damaging your materials