Yellow clamshell grab

What do people usually mean by saying grab? Well, as rule they use a verb but here in 3D a noun is more common. So, a 3D grab is a mechanical device with two or more jaws. And this very 3D model is a 3D model of a Yellow clamshell grab that is used to pick things up or to capture things. There are different ways of open/close the 3D grabs prototypes: electro-hydraulic, diesel-hydraulic or mechanical - by ropes. But the 3D Yellow clamshell grab can be easily opened just with a click of your mouse.