Wonder Button, Collar Extender, Collar Expander - whatever you want to call this marvellous little device, it is an excellent and ingenious way to resolve the problem of your shirt collar being too tight.
Not only is the Wonder Button a collar extender it is also a cuff expander making it ideal for prosthetic limb wearers.
Note: The wonder button comes with a lifetime guarantee.
Occasionally breakage can occur from excessive wear.
In the unlikely event of this happening, please return for a free replacement.
(Wonder Button is a registered trademark of Jay Trim Limited of Manchester and is used with their permission.)
