This set of 4 x SP10 digital probes is perfect for those who already have a PCBite metal base plate and circuit board holders, which are required for successful usage of these probes. This set includes the following items: 4× PCBite probes with pin tipped test needles4x Extra test needles 5x Dupont to dupont test wires2x Banana to dupont test wires These hands-free probes make it a breeze to instrument your test circuit. No more soldering wires to connect your probe or complicated tools to setup, just position the probe needle on any test point or component in the signal path and release. The minimalist design and the spring loaded test needle makes it possible to simultaneously probe directly on fine pitch components and SMT test points. The probe is steady yet very flexible which makes for total hands-free operations together with your Binho Nova, multimeter, logic analyzer and other development tools. The dual pin header connector fits directly on a 2.54mm (0.1”) connector. The SP10 probes come with a powerful magnet in the base, as for all PCBite probes and holders which makes the probe easy to place and reposition anywhere on the base plate.