Laser pointers are compact instruments that produce a low-power, visible laser light. They are often used for pointing out features on a projected visual display.
Lasers are devices that produce intense beams of monochromatic, coherent radiation. The word "laser" is an acronym for Light Amplification by Stimulated Emission of Radiation.
Plastic labware and glass labware are made of glass or plastic and intended for laboratory use. Type, volume, and material of construction are the most important specifications to consider.