Product Name : Alligator Test Clips;Application : Testing Work Total Size : 3.7 x 0.8 x 0.5cm/ 1.5" x 0.3" x 0.19" (L*W*H);Jaw Open Width : 0.4cm / 0.16"(Max.) Color : Silver Tone, Red, Black;Material : Metal, Soft Plastic Net Weight : 28g 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 safety for use with the insulation red soft plastic covered. Package: 20 x Alligator Test Clips Note:Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.