please advise where this product is made (for example, in China? in USA? or elsewhere) and what product(s) comprises the stuffing. thank you.

Made in China. The stuff inside is glass beads and cotton and it is heavy enough. Very delicate workmanship.

In the picture it shows this is 4" thick but the description says 3". Which is it?

Not sure where you see 4"....it's 3 inches, but plenty wide for standard door.

Would this work for a sliding door area, back area? When the door is closed, the back area has a breeze. Need new door.haha!

Hello, Our door draft stopper can effectively prevent cold air from entering the room through the gap at the bottom of the door, especially in winter, the use of our door stopper seal can effectively maintain the temperature of the room.Don't worry, it also works on your sliding doors.

Is it heavy? And will it work on windows?

It is heavy, but you can easily pick it up. Instead of heavy, I think I would say it is solid. Not a flimsy little thing. I actually use them under my furniture to keep the dog's ball from rolling under. I don't see why they wouldn't work on windows, provided you have a sill that is at least a couple of inches wide.

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fowong Heavy Door Draft Stopper, 38 inch Soundproof Under Door Seal Energy Efficient Door Accessory Front Door Insulation Door Draft Guard Weatherproof Strip (Grey)

Product ID: 337088908

Details

Brand
fowong
Colour
Dark Gray
Material
Printed
Maximum Gap Fill
38 Inches
Product Dimensions
96.5L x 10.2W

💡Energy-saving insulation

🌬️Blocks wind, dust & noise

🛡️38-inch heavy-duty coverage

$251.88

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Description

🚪 Seal the deal on comfort and savings—your door’s new best friend!

HEAVYWEIGHT INSULATION - Glass bead-filled polyester wadding for superior draft blocking and durability.
LOW MAINTENANCE LUXURY - Machine washable fabric with sewn-in loops for easy hanging and reuse.
EFFORTLESS INSTALLATION - Tool-free setup with hook & loop strips—stick, seal, and save energy instantly.
MULTI FUNCTIONAL SHIELD - Blocks wind, dust, noise, water, and light—perfect for doors, windows, and fireplaces.
ULTIMATE CLIMATE CONTROL - Seals gaps up to 38 inches to keep your space cozy and quiet.

The fowong Heavy Door Draft Stopper is a 38-inch soundproof and weatherproof door accessory designed to block drafts, noise, dust, and moisture. Filled with glass bead-enhanced polyester wadding and wrapped in durable printed fabric, it offers heavy-duty insulation that reduces heating and cooling costs. Easy to install with included hook & loop strips and machine washable, it’s a stylish, functional upgrade for any professional’s home or office.

Specifications

ASIN	B07MZRHWRV
Brand	fowong
Colour	Dark Gray
Country of Origin	USA
Customer Reviews	4.6 4.6 out of 5 stars (1,684)
Enclosure Material	Printed Fabrics
Item Dimensions L x W x Thickness	96.5L x 10.2W x 10.2Th Centimeters
Manufacturer	fowong
Manufacturer Part Number	BYT-YHGR
Maximum Gap Fill	38 Inches
Model number	BYT-YHGR
UPC	653846684158
Unit Count	1.0 Count

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$251.88

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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