But he is nothing if not durable.
Among other problems, early versions were allegedly not durable enough.
The tree's wood is yellowish white and hard but not durable.
Schlereth, one of Denver's most dependable, if not durable, offensive linemen, hyperextended his knee Friday and has not practiced since.
It just was not durable until companies came up with a product in the late '40s, early '50s".
But the recovery was still not durable enough to survive Roosevelt's spending cuts and new Social Security tax.
Problems arose because Goodyear's tires were not durable enough to withstand the lack of downforce on Nascar's new car and the speeds and surface of Indy.
Electroloom however, is facing the opposite problem - the wispy quality of its prototype fabrics means they're currently not durable for frequent wear.
The designs and the materials the company was using at the time were not durable, were not scaleable so we essentially did a restart at that point".
The cars are not durable, as they disintegrate rapidly, and they are not stable, since pieces can break off and float.
