The kit comprises the following 19 different sized sets of 4 universal breakout leads and a set of back-pinning probes: ---14 sets with flat blade connectors in different sizes (0.6 mm, 0.8mm, 0.84mm, 1.0mm, 1.2 mm, 1.3mm, 1.5mm, 2.0 mm, 2.3 mm, 2.8 mm, 4.8 mm, 6.0 mm, 8.0mm, 8.3mm). ---4 sets with round pins in different sizes (1.5 mm, 2.0 mm, 3.5 mm and 4.0 mm). ---1 set with square pins in one size (0.63mm). ---Right-angle back-pinning probes with hard tip 0.7mm outer diameter with 300 mm extension lead. With all the connectivity options it provides, the kit improves your chances of making a sound connection between the terminals of any connector you might encounter. Each breakout lead within each set of four is colored to match one of the standard PicoScope channel inputs (i.e.