ABRA stocks a wide variety of Test Leads like Banana to Banana, BNC to BNC, Alligator Test Lead Sets, Banana to Alligator, Banana to IC, BNC to Alligator, Universal Test Leads Sets, etc.
These SparkFun needle tipped multimeter probes are great for attaching to multimeters, power supplies, oscilloscopes, function generators, etc. Dimensions: 36" Long.
Medium Red Alligator Clip, 35mm. These are standard economy solder type alligator clips with insulator.