They are thick enough to withstand metal parts without breaking. I mainly use them for storing screws and related hardware, which they're great for. The 4x6 is big enough to hold the various pieces of gear that came from taking something apart and hold it together without loss until the necessary parts arrive and you can put it back together. Also great for spares, you can just stick these on a box or whatever and find them when you need them later. I use the smaller versions to keep small nuts and bolts etc organized, but they take up a lot less space than a plastic box with separate parts. Really very comfortable, and the thinner versions you find just don't make it that way.
ClearBags 9 X 15 Door Hanger Bags (1000 Bags) For Door Knob Flyers Promotions Coupons Clear Plastic Poly Hanging Bags For Mail Newspaper Bags With Hangers Protect Against Rain, Dirt, & Bugs DK4
14 Review
High Quality Clear Zip Bags - 3 X 3 Inches, 2Mil Thickness, Case Of 1,000 By GPI Brand
25 Review
2000 Clear Reclosable 1 Inch X 1 Inch Zipper Bags By IMBAPrice
40 Review
200-Pack 3" X 3" Clear Plastic Reclosable Zip Bags | Heavy Duty 4 Mil Thick Poly Baggies With Resealable Lock For Travel, Storage, Packaging & Shipping
23 Review
Fuxury Pink Anti-Static Bubble Cushion Wrap Roll Air Bubble Roll 1 Roll 36 Feet
3 Review
๐ฆ Perforated Stickers Packaging for Cushioning during Shipping
3 Review
๐ฆ 6X10 Inch Pouches for Secure Cushioning in Shipping Supplies
3 Review
Honeycomb Cushioning: Eco-Friendly Biodegradable & Recyclable Wrapping Solution
3 Review