Prototype 72x100mm PCB Board DIN Rail Mounting Carrier Housing Arduino Kit DIY Package Dimensions: ‎3 x 3 x 0.7 inches Soldering this PCB allows you to move your circuit and wiring from a plug-in breadboard without needing to re-cut wires or alter your layout. Terminal pitch: 5.08mm (0.2"). Each hole is electrically isolated, with a pitch of 2.54mm (0.1"). Hole diameter is approximately 1 mm. PCB dimensions: 72×100mm. The pre-tinned plated holes on the board make it convenient to solder components and sensors for your projects. Printed coordinate numbers on the PCB assist in practical operation. It comes with a DIN Rail mounting module housing to help prevent short circuits. Compatible DIN Rail sizes: 35mm (C45 Rail), 32mm, and 15mm. Suitable for prototyping, testing, DIY projects, and building electronic circuits, including soldering connectors, LEDs, sensors, resistors, and other electronic components.