If used how much is neck size increased?

I realized about 3/4 inch increase

How much do these extend the collar by?

Enough for a good and conformable fit.

What is the diameter of the button?

smaller then the collar button.

What is the country of origin?

According to the box: Made in Canada with Italian materials.

Button Extender Pack | Desertcart Bermuda

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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$48

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Sold byAmazon BermudaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

👔 Elevate Your Style, One Button at a Time!

VERSATILE USE - Works for shirts, cuffs, and jeans.
DISCREET DESIGN - Looks just like a regular button.
DURABLE QUALITY - Crafted from premium Italian materials.
INSTANT FIT UPGRADE - Transform your shirt's comfort in seconds!
UNIVERSAL COMPATIBILITY - Perfect for both men and women.

The Comfy Clothiers Collar Extender is a stylish and practical solution for those seeking extra comfort in their dress shirts. Designed for both men and women, this button extender adds up to an inch of collar space without compromising on style. Made from high-quality Italian materials, it offers durability and a seamless look that blends perfectly with your shirt. Ideal for various clothing types, this product is a must-have fashion hack for anyone looking to enhance their wardrobe effortlessly.

Specifications

ASIN	B07HM8XG45
ASIN	B0GX2FLZXF
Age Range Description	Adult
Apparel Fabric Stretch	High Stretch
Apparel Fabric Weight Class	Lightweight
Best Sellers Rank	#25,948 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #279 in Sewing Buttons
Brand Name	Comfy Clothiers
Closure Type	Button
Collection Name	All
Color	Black (Pack of 3)
Customer Reviews	4.5 4.5 out of 5 stars (3,679)
Date First Available	April 13, 2026
Department	mens
Fabric Type	Elastic
Fit Type	Stretch
Fit to Size Sentiment	Neutral
Garment Size Country	United States
Import Designation	Imported
Material	Metal
Number of Items	3
Occasion	christmas
Part Number	CC-DELUXECOLLAR-3-BLK
Pattern	Solid
Product Care Instructions	Hand Wash Gently, Do Not Tumble Dry, Hang to Dry
Style	Modern
Style Number	CC-DELUXECOLLAR-3-BLK
UPC	850845007432
Unit Count	3 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Smooth transaction and product arrived in perfect condition.

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$48