Hi,
Listed these the other day on ebay and though it might be of some interested to some one on here 
They are heavy duty, Only noticed just before listing them that the button needs replacing which according to my girlfriend is easy and cheap (way less then £10)
Any questions drop me a message on ebay
Be safe!!
Mike
http://www.ebay.co.uk/itm/261669408684?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649