Extra Thick Magnet Upgrade – Add-On Only (Not a Standalone Product)

This upgrade is available to increase the thickness of your bumper magnet(s) from our standard 20 mil to a more durable 30 mil. The thicker material offers a stronger hold and increased durability — especially useful in colder climates or high-wind areas where magnet edges may curl.

🔹This is not a standalone product.
🔹 It does not include any design or magnet on its own.

How it works:

• This upgrade must be paired with a bumper magnet in your cart at checkout.

• It is priced per magnet — if you’re purchasing two magnets and want both upgraded, be sure to add two of this upgrade.

• This listing exists so our site can process add-ons — it's not a physical item by itself.

Important:

If you add a bumper magnet, select this upgrade, and then remove the magnet from your cart, the system won’t automatically remove this add-on. If no actual magnet is included in your order, this upgrade won’t apply to anything and will be refunded.

To receive the upgraded material, please ensure:
✅ Your cart includes at least one bumper magnet
✅ You have not removed the magnet but left this upgrade behind by mistake
✅ You’ve selected the correct quantity of upgrades (1 per magnet)

Sizing:
-Rectangular (bumper sticker) designs are approx. 8.5 x 2.5 inches
-Die-cuts are typically 3–4 inches
-Handmade! Sizing may vary slightly.

Materials:
-Premium all-weather vinyl
-Waterproof, smudge-proof, fade-proof, car wash safe
-Apocalypse-resistant

Magnets:
-Standard magnets are 20 mil thick.
-Upgrade to 30 mil - recommended for cold climates or aggressive winds.

Shipping:
-Ships in 1–3 business days from Washington
-We ship worldwide
-Free shipping available. Note that free third-party shipping is only trackable via EasyPost link in shipping confirmation. See Shop FAQs for more.

❗ DISCLAIMERS:

Mockups:
Mockup images are not to scale. May be larger in images for viewability. Colors may vary slightly.

Application Disclaimer:
– We can’t offer refunds for application to textured, plastic, or dirty surfaces, or for poor application practices.
– Frog Mustard products work best on glossy, smooth, clean, dry surfaces.
– Many coolers, kayaks, vehicle cladding, and similar items are made with low surface energy (LSE) plastics, which make it hard for adhesives (even premium vinyl) to bond.
– You assume the risk if you apply to a weird or incompatible surface.

👉 If you're applying to an LSE plastic and love our designs, message us — we’re happy to chat about higher-tack vinyl options for tough surfaces.

💡 For DIY adhesion help, many folks use Mod Podge, 3M Super 77 spray adhesive, or apply a little heat and pressure during application.

Learn more about surface energy and why it matters here:

🔗 3M Guide to Surface Energy & Adhesion

Air Bubbles (Magnets):
Small air bubbles under magnets are normal and usually disappear with time/heat.

Magnet Compatibility:
Many modern car bumpers are plastic and won’t hold magnets — try your trunk, doors, or side panels instead. Test a magnet on your car before purchasing. We cannot refund for those that do not check.

Longevity:
While our materials are built to last, extreme weather or improper surface prep can shorten product life.

Duplicates (Mystery/Misprints): Mystery and misprint packs may include duplicates. That’s part of the gamble. Misprints are subject to what is on hand that has been misprinted. If you do not want duplicates, buy a non-misprinted bundle.

Design Ownership:
All designs are original and created for humor/novelty. Parody and satire are protected speech.

No Custom Orders via Notes:
We can’t honor custom requests left in order notes for non-custom products. Please contact us before purchasing.

Stolen or Lost Mail:
Once your package is marked delivered, we unfortunately can’t replace lost or stolen mail. Please ensure your shipping address is correct and secure.