The word "rococo" is derived from the French word "rocaille", which denoted shell-covered rockwork.

UNESCO: Culture

These walls feature shell-covered works, the original "Rococo" style.

UNESCO: Culture

What makes the Commando different is its thick black plastic shell, a 3.6-inch touchscreen covered with Corning's extra-tough Gorilla Glass and a micro-USB port sealed with a rubber gasket.

FORBES: Magazine Article

The shell is flexible and covered in a black leathery skin - hence the name leatherback.

BBC: New law to protect Puerto Rico leatherback turtles