ebay sellers postage costs

[rondoolaa]

why does ebay let so many seller get away with extortionate postage on such small items,

most sellers from the states charge say $2-$3 postage for the kind of items i look for but some charge $7-$20 postage for such small items:

eg: the first link below, whatever item you get from this seller is $11.39 postage, whether its a big item or a packet of 4 miniture screws



http://www.ebay.co.uk/itm/NEW-DuraTr...f#ht_700wt_952


http://www.ebay.co.uk/itm/S-Shock-Sh...4#ht_500wt_969


http://www.ebay.co.uk/itm/WPS-5-Gold...d#ht_500wt_969