Description:Specification:Board size: 70 x 57MM Thickness: 1.6mm Board material: standard plate, blue solder mask, all solder pads are tin-plated, high-strength fireproof and anti-drop material, which can be repeatedly disassembled.Size: 70 x 57mmSheet: FR-4 tin platedMaterial: PC+MetalColor as shownSMD components: 149Soldering point: 444The full process circuit board is the same as the competition board.There are 10 types of SMD components for welding, 129 pieces in , and corresponding test points are set. list:Resistance type---Package is 0805 (60 pcs)Resistance type---package is 0603 (10 pcs)Light-emitting diodes---packaged as 0805 (10 pcs) class---packaged as 0603 (5 pcs)Capacitors---packaged as 0805 (10 pcs)Diodes--packaged as 1206 (10 pcs)Transistor type--packaged as SOT-23 (10 pcs)Integrated --packaged as SOP-8, SOP-16 (2 pcs)Resistor or capacitor type---package is 0402 (10 pcs)Integrated chip type-packaged as LQFP44 (2 pcs)Package Contents:1 x Full welding practice boardOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.