Upgrade your old boxes and gift bags with simple wire handles for stronger,...
https://web-wiki.win/index.php/How_Do_I_Reinforce_Cardboard_Before_Drilling_Holes_for_Handles%3F
Upgrade your old boxes and gift bags with simple wire handles for stronger, easy-to-carry storage. Use 2-3 mm galvanized wire for sturdy support that won’t rust. Drill 3-3.5 mm holes for just the right fit