Uxcell 20 Pcs Red Black Boot Test Insulated Electric Testing Alligator Clips Alligator clips can be used in electrical or laboratory electric testing work. Alligator clips are frequently used in school physics laboratories to quickly and cheaply assemble circuits. They are useful for connecting components to wires. Alligator clips can be used as miniature clamps to hold parts together for gluing and wires together for soldering. Easy for installation and for use with the insulation red soft plastic boots covered.