watch out for counterfeit iphone 4 bumpers touted as original on ebay.
I bought 1 (see link below) at £15 thinking it was a reasonable price for an original, but it is infact one of the cheap china clones available for about S$14 or USD 10 from many china/HK sellers.
beware of fakes! Although these counterfeit ones are pretty well made with the metal buttons, the dual tone colors are alittle off.
For the white bumpers, the actual color is white plastic and greyish white silicon material, but for the counterfeits, they are white plastic n yellowish white silicon.
The seller has offer me a £5 refund and keep the item, which i think i will do as it is quite well made still.