you are biding on a used but look like new Ultrabay mediabay Battery For IBM Thinkpad T60 R60 T61, it is very useful, orginal price is $68 in amazon.

it is orginial factory made. can last 2 hours, but this may vary depending on the different mode of computer. please check the battery icon when you first use it.

i will be happy to answer any question you have, just feel free to ask.