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Quiet Protector

Questions? Call us(877) 428-1729 Or write to ussupport@quietprotector.com

TerraBolt portable door lock for home, hotels and dorms

The steel plate that locks your door behind the lock, even if someone else has a key

$39.90

Holds when the lock doesn't
Five seconds. No tools. No damage.
Works on most hotels, Airbnbs, apartments and dorms

Details

Solid stainless steel plate plus a half-moon locking pin
No batteries, no electronics, no app, nothing to charge
Smaller than a playing card: fits a purse, carry-on or nightstand drawer
Stays locked from outside, lifts out in one pull from inside
Fits standard inward-opening doors with a visible strike plate. Not for sliding or outward-opening doors.

120-day money-back guarantee and 2-year warranty.

Shipping & returns

Free U.S. shipping over $69. Most orders arrive in 10 to 15 days, with a tracking link by email the day it ships. You have 120 days to decide: call (877) 428-1729 or email support@quietprotector.com for a full refund.

Once a key exists, the deadbolt has one job: to open

Your lock does what it was built to do: it stops people without a key. But housekeeping, maintenance, a former tenant or an old spare can still have a working key, code or keycard. Most doors still have the same backup plan: hope the key is in the right hands.

TerraBolt vs door wedge or door chain

	TerraBolt	Door wedge or door chain
How it holds	A steel catch inside the strike plate	Friction against the floor, or a chain on short screws
On tile or carpet	No floor contact needed	Slides on tile, sinks into carpet
When a key still works	The door still catches on steel	One hard push can open it
Material	Solid stainless steel	Rubber, plastic or thin chain
Installation	No drilling, no marks, lifts out in one pull	Chains need screws in the trim

What's inside, and why it matters

Steel plate and half-moon pin with black cord, clean white background (2048px)

On the nightstand

Set it on the bedroom door every night in five seconds.

TerraBolt set on a wooden door next to the handle, pin and cord in place

In the suitcase

Packs flat with no electronics, so it travels in a carry-on.

Close-up of brushed steel plate and pin on a cream backdrop

For the family

Send one with the daughter who just moved out, or a parent living alone.

How to use TerraBolt

1Close the doorShut the door like normal, in a hotel room, apartment, dorm or your own bedroom.

2Slide in the plateSlide the TerraBolt plate into the strike plate slot on the door frame.

3Drop the pinDrop the half-moon pin into the plate's hole with a quarter turn. The door now catches on steel no key controls.

TerraBolt: questions before you order

What doors does TerraBolt work on?

Any standard inward-opening door with a visible strike plate: hotel rooms, apartments, dorms, spare bedrooms, Airbnbs and most US homes. It is not for outward-opening or sliding doors, and some low-clearance or non-standard doors may not fit.

Can I reuse it?

Yes. It is solid stainless steel. Slide it in, drop the pin, lift the pin to leave. Use the same unit in a hotel tonight, your daughter's dorm tomorrow and your own bedroom next week.

Can I give these as gifts?

Absolutely. Family packs are a popular gift for daughters in first apartments, college-bound grandkids and elderly parents living alone.

What if it's not for me?

Try it for 120 nights at home, in a hotel or anywhere you sleep. If it doesn't give you more peace of mind, send it back for a full refund. No questions asked.

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TerraBolt: a door security lock that works even when someone else has a key

TerraBolt is a portable door lock: a solid stainless steel plate and a locking pin that hold an inward-opening door shut behind its own lock. Even if someone opens the lock from outside with a key, the door stays closed. It takes five seconds to fit, needs no tools and leaves no damage.

It is the door lock for hotels, Airbnbs, apartments and dorm rooms, and for a bedroom door at home. Smaller than a playing card, it fits a purse or a carry-on, and it lifts out in one pull from inside. It fits standard inward-opening doors with a visible strike plate. It is not for sliding or outward-opening doors.

Add a door and window alarm for the openings near where you sleep, or see all our home safety products.