I started using them to mail CDs to my clients. They are "tough" enough to insure against breakage. I use duct tape as an extra seal, just in case.
π§οΈ Waterproof Clothing Shipping Envelopes: Secure, Adhesive, and Weather-Resistant
3 Review
π¬ Maxtek Self-Adhesive Cardboard Mailers in Inches
3 Review
UCGOU Bubble Mailers 8: Ensuring Safe and Secure Shipping of Your Valuables
3 Review
π Ohuhu Waterproof Tear Proof Christmas Envelopes
3 Review
Honeycomb Cushioning: Eco-Friendly Biodegradable & Recyclable Wrapping Solution
3 Review
π¦ Perforated Stickers Packaging for Cushioning during Shipping
3 Review
π¦ 6X10 Inch Pouches for Secure Cushioning in Shipping Supplies
3 Review
Heavy-Duty Perforated Sticker Supplies with Advanced Cushioning
3 Review