Upgrade your reclaimed boxes and gift bags by adding sturdy wire handles. Use...
https://web-wiki.win/index.php/How_Do_I_Reinforce_Cardboard_Before_Drilling_Holes_for_Handles%3F
Upgrade your reclaimed boxes and gift bags by adding sturdy wire handles. Use 2-3 mm galvanized wire for strength and durability that lasts. Drill 3-3.5 mm holes for a snug fit that won’t tear your material