Smooth Toothless Solid Copper Alligator Clips for use as a soldering heat sink or quick clip on test lead wire connector Excellent Heat Transfer Makes Solid Copper Alligator Clips The Best Soldering HeatSinks To Protect Delicate Thermal Sensitive Electronic Components Rated for up to 5 amps of current and 12 awg (12ga) stranded hook-up wire Great addition to any DIY Electronics Enthusiast or Hobbyist - Make Test Leads or Protect ICs, circuits, and other heat Sensitive parts when soldering Overall Length: ~1.1' (27.8mm) Max Jaw Opening: ~.25' (6mm) Crimp or Solder Connection Current Rating: 5 Amps Max Wire Size: 12AWG