Upgrade your old boxes and bags with sturdy wire handles for easy carrying and...

https://sethscoolword.publishlane.com/posts/what-is-the-best-way-to-reinforce-a-handle-hole-on-a-paper-bag

Upgrade your old boxes and bags with sturdy wire handles for easy carrying and better durability. Use 2-3 mm galvanized wire for strength and rust resistance. Drill 3-3.5 mm holes to thread the wire through securely