Upgrade your reclaimed boxes and bags by adding sturdy wire handles for better...
https://spencermlsy639.huicopper.com/cardboard-sandwich-method-for-bag-handles-how-do-i-hide-the-anchor
Upgrade your reclaimed boxes and bags by adding sturdy wire handles for better grip and easy carrying. Use 2-3 mm galvanized wire to ensure durability without rust. Drill 3-3.5 mm holes to thread the wire securely through without damaging the material