CESS Single Test Hook Clip - Mini Size Test Probe for Electronic Testing - Length 1.6 Inch (4 Pack) Test Hook Clip,Length 1.6" (40mm) Mini Size Test Probe for Electronic Testing You can connect the clip to multimeter or DC power by a lead Help you to test IC or repair cell phone and other mini electronic products more conveniently. Powerful spring pulling the min hooks to grasp tiny components firmly and avoid any short-circuit.