Quick Specs
- Type: Clear poly resealable zip bags, 4mil heavy-duty
- Size: 13″ x 18″
- Size/Quantity: 13 x 18 inches, case of 500
- Best for: Large crystal lots, bulk herbs by the pound, textiles, wholesale apothecary supplies
Heavy-Duty 4mil Bags for Large Bulk Items
The 13-by-18-inch size at 4mil thickness addresses a packaging gap that lighter and smaller bags cannot fill. Crystal lots weighing a pound or more, multi-pound herb bundles, rolled tapestries, folded ritual cloths, large smudge bundles, and full selenite slabs all require a bag that will not split at the seam or puncture in transit. At 4mil, the poly film is twice the thickness of a standard 2mil bag, which meaningfully reduces the risk of stress tears when carrying heavy or irregular loads by the zip closure.
The 13×18 format is the largest common resealable bag size used in metaphysical wholesale. At this scale, the bag functions less as individual retail packaging and more as a protective storage and transit layer for bulk goods. Wholesale buyers receiving a flat of tumbled stones, a bundle of sage sticks, or a box of assorted crystals expect their items to arrive clean and dry. This bag format meets that expectation while remaining transparent enough for visual inventory checks without opening each bag during receiving and sorting.
Storage and Wholesale Use for Ritual and Apothecary Goods
For apothecary operations that buy herbs and botanicals by the pound and repack into smaller portions, the 13×18 4mil bag works well as the primary storage bag for raw supply before repacking. One pound of dried lavender, a large bundle of white sage, or several ounces of copal resin all fit comfortably with room to press out air before sealing. Removing air before closing extends the shelf life of aromatic botanicals by limiting oxidation and preventing the humidity cycling that causes caking and color loss in dried plant material.
How to Use These 13 x 18 Inch Heavy-Duty Resealable Bags
Packing, sealing, and storing large bulk items in heavy-duty 4mil bags.
- Press out air before sealing bulk botanicals
For dried herbs and aromatic resins, partially close the zip, then press the bag flat from the bottom upward to push air out before sealing. Reducing the air volume inside slows oxidation and keeps aromatic compounds from degrading between orders.
- Double-bag sharp or heavy crystal lots
For rough crystal lots with sharp edges, place the crystals inside a 2mil bag first, then insert that bag into the 13×18 4mil outer bag. The double layer prevents point punctures and protects the zip closure from internal pressure during transit.
- Label the exterior for warehouse inventory
Attach a waterproof label to the front face with the product name, weight, and receipt date before storing. Large bags tend to stack and the label allows quick identification. For crystal lots, note the stone type and source country for restocking.
The Tarot Fellow Standard
I stock the 13×18 4mil bags because there is no lighter or smaller bag that handles large crystal lots and bulk botanicals without risking punctures or moisture infiltration during storage and transit. For the bulk herbs that need this level of containment, browse my bulk herbs collection. For raw crystal lots that benefit from the extra protection, explore my raw bulk stones selection.
Frequently Asked Questions
4mil bags are twice the wall thickness of 2mil bags. The extra thickness provides better puncture resistance for sharp crystals and heavy loads, better structural integrity under weight, and reduced scent migration for aromatic goods during storage.
The 13×18 4mil bag comfortably holds 3 to 8 pounds of tumbled stones or dried herbs depending on density. Dense minerals like hematite reach the practical weight limit at the lower end. Lighter botanicals like dried lavender can fill the bag fully.
Yes. Large sage bundles and multi-stick smudge lots fit the 13×18 format without bending the bundles. The 4mil thickness handles woody stems without puncturing. Store sage away from direct light and humidity to preserve color and aromatic intensity.
They work well as an inner layer inside a shipping box for bulk crystal orders. For mailer shipping without a box, the bag alone is not a substitute for bubble wrap. Heavy crystals need crush protection from the outer carton in addition to the bag.
Reviews
There are no reviews yet