What is an important characteristic of devices used for restraint?

An important characteristic of devices used for restraint in a laboratory setting is that they allow technicians to use both hands for procedures. This is crucial as it enhances the efficiency and safety of handling animals during various tasks, such as injections, examinations, or treatments. When technicians have their hands free, they can better manage the animal while performing necessary procedures, ensuring the welfare of the animal and the safety of the technician.

Devices designed for restraint should prioritize both functionality and the well-being of the animal. While it is true that certain restraints might not be completely comfortable, it is not a defining characteristic necessary for their effectiveness. Additionally, devices that can only be used once are not practical for a laboratory setting where resources and time are often limited. Finally, while preventing interaction among animals might be a feature of some types of restraint, it is not universally applicable nor is it inherently a purpose of restraint devices. Therefore, allowing technicians to utilize both hands for procedures is a key reason why selecting the right restraint device is vital in animal care and research practices.