SketchUp's tool palette is similar to those in other Apple OS X applications. Display the standard tool palette by clicking on the View > Tool Palettes > Standard menu item.
The buttons on the principal tools section of the tool palette activate the Select Tool, Paint Bucket Tool, and Eraser Tool.

The buttons on the drawing tools section of the tool palette activate the Rectangle Tool, Line Tool, Circle Tool, Arc Tool, Polygon Tool, and Freehand Tool.

The modification tools section of the tool palette contains geometry modification tools. The tools on this toolbar are the Move Tool, Push/Pull Tool, Rotate Tool, Follow Me Tool, Scale Tool, and Offset Tool.

The buttons on the construction tools section of the tool palette activate the Tape Measure Tool, Dimensions Tool, Protractor Tool, Text Tool, Axes Tool, and Section Tool.

The buttons on the camera tools section of the tool palette activate the Orbit Tool, Pan Tool, Zoom Tool, Zoom Window Tool, Zoom Extents Tool, and the Previous camera tools.

The buttons on the walkthrough tools section of the tool palette activate the Position Camera Tool, Walk Tool, and Look Around Tool.

The buttons on the Google toolbar are used to collaborate between SketchUp and other Google products. The toolbar contains the Get Current View, Toggle Terrain, Place Model, Get Models, and Share Model buttons.

The tool palette can be displayed using large and small tool buttons. Check the Use Large Tool Buttons checkbox in the General panel of the Preferences dialog box to switch between large and small tool buttons.
Hover over a tool to display a help tag with the name of the tool. A longer help tag will appear in the Status Bar when you activate a tool.