I've actually seen this piece of furniture before and it still amazes me every time I see it again. It's called the "Flexible Love". A flexible chair that can be expanded and compressed to any length.
A very eco-friendly furniture, this chair is produced in Taiwan and is made from recycled paper and recycled wood waste. Although it may seem light weight, it is strong enough to support a lot of users at the same time. The chair incorporates a honeycomb structure that enables it to expand and contract to any length that you want.
Below you'll see a video of this chair in action.
Below is another look of this amazing chair by furniturefile.co.uk.
If you're interested to know more about this chair or if you want to buy one for yourself, check out the official website of Flexible Love.
(image above by green talk on Flickr)