« Reply #11128 on: Sat, 29 October 2016, 18:38:12 »
A floor mat to protect my new carpet from my desk chair.
You skinny lightweights will probably get many years out of one.
I am a big boy and weigh 255 pounds / 100 kilos / 16 stone - and even the "good ones" only last me about 3-4 years at best (my chair has 5 good-sized cylindrical wheels).
About 20 years ago, in the US, the "premium" level ones started carrying a lifetime warranty, but about 10 years ago they stopped making the claim and even reneged on the ones already sold. "We will replace it this time, but no more" as they realized that it was prohibitive to manufacture a truly long-lasting example.

Logged
“No political truth is of greater intrinsic value, or is stamped with the authority of more enlightened patrons of liberty: The accumulation of all powers, legislative, executive, and judiciary, in the same hands .… may justly be pronounced the very definition of tyranny.” —James Madison, Federalist 47
“All the powers of government, legislative, executive, and judiciary, result to the legislative body. The concentrating of these in the same hands, is precisely the definition of despotic government. An ELECTIVE DESPOTISM was not the government we fought for; but one .... in which the powers of government should be so divided and balanced among several bodies of magistracy, as that no one could transcend their legal limits, without being effectually checked and restrained by the others.” — Thomas Jefferson, commentary on Federalist 48