Check the listing for details. Soldering Practice Board, 2 Set Electronics Kit Prototype PCB Board DIY Circuit. Condition: New. Listed at 14.19 USD. This soldering kit electronics practice board is a teaching beginner kit for people who want to improve the welding skills.The welding product is a beautiful water lamp circuit.Specification:Product:Electronic Production Teaching KitApplicable voltage: 3~12VPCB board size: 85.5*54*1.5mm/3.36*2.12*0.06inchEffect: rotating water lampPacking List: 2 Set DIY Electronic Experiments Teaching Kit(12 * 1206 resistors; 12 * 0805 resistors; 12 * 0805 capacitors; 14 * 0603 capacitors; 14 * 0603 resistors; 14 * 0402 resistors; 15 * 0805 resistors (331-511); 15 * LED lights (Red); 4 * transistors; 4 * diodes; 5 * 0805 (10K); 1 * 0805 (2M); 2 * 0805 (104); 1 *NE555 chip; 1 *CD4017 chip; 1 *PCB board; 1 *Battery Box. )Advantage :1.