Magnetic Key Holder Box – Waterproof Under Car Spare Key Safe

$37.51 $42.39

Shipping calculated at checkout.

Never Get Locked Out Again — Secure, Discreet Key Storage Anywhere

The Magnetic Key Holder Box is the smart solution for stashing a spare key — or other small valuables — in a hidden, weatherproof spot. Whether tucked under your car, attached to a metal fence, or hidden near your garden shed, this upgraded box keeps your essentials safe and accessible whenever you need them most.

Made in Mainland China.

Key Features

Triple Neodymium Magnets (50 lbs Force): Three powerful neodymium magnets provide an exceptional hold on any metal surface — stays firmly in place even at highway speeds or over rough terrain.
Waterproof & Rustproof Construction: Built from durable ABS plastic with rust-resistant materials, this box is engineered to withstand rain, mud, and the elements without degrading over time.
4-Buckle Security Latch: Four heavy-duty safety buckles lock the lid securely, preventing accidental opening. The buckle design is tested for repeated use without losing its grip.
Large Capacity Interior: Inner dimensions of 4.33 × 2.56 × 1.38 inches (11 × 6.5 × 3.5 cm) — roomy enough for car keys, house keys, cards, cash, jewellery, watches, or even a mini GPS tracker.
Soft Protective Lining: A soft interior pad cushions and protects delicate items from scratches and movement.
Versatile Mounting Locations: Perfect for use under cars or trucks, on metal mailboxes, gate posts, sheds, or any steel surface — indoors or outdoors.
Available in 1-Pack or 2-Pack: Stock multiple locations for maximum convenience and peace of mind.

Specifications

Material	ABS Plastic + Neodymium Magnets
Color	Black
Outer Dimensions	13 × 8.5 × 4.5 cm (5.12 × 3.35 × 1.77 in)
Inner Dimensions	11 × 6.5 × 3.5 cm (4.33 × 2.56 × 1.38 in)
Magnetic Force	~50 lbs (3 magnets)
Style Options	1-Pack or 2-Pack
Origin	Mainland China

What's in the Box?

1× or 2× Magnetic Key Holder Box (as selected)

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Frequently Asked Questions

Q: How strong is the magnetic key holder box under a car?

A: The upgraded magnetic key holder box features three neodymium magnets delivering approximately 50 lbs of separation force. This provides a very secure attachment to metal vehicle surfaces, including under cars and trucks, even during highway driving or on uneven roads.

Q: Is the magnetic key box truly waterproof?

A: Yes. The box is constructed from waterproof ABS plastic with a rust-resistant design and a tight four-buckle closure. It is built to withstand rain, splashing, and outdoor moisture, making it ideal for under-car or exterior use.

Q: What items can I store in the magnetic key holder box?

A: The generous interior (4.33 × 2.56 × 1.38 inches) can hold spare keys, car keys, cards, small amounts of cash, jewellery, a watch, or even a compact GPS tracker — making it a truly multifunctional hidden storage solution.

Q: Can I attach the magnetic key box to surfaces other than a car?

A: Absolutely. While it excels as an under-car key hider, the magnetic key holder can be attached to any metal surface, including garden sheds, metal gates, mailboxes, metal fences, and more — anywhere you need discreet outdoor storage.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.