20 PCS PCB Board Kits, Include 12 PCS Double Sided PCB Board Prototype Circuit B

4 Different Sizes: 3pcs 2 8cm PCB board, 3pcs 3 7cm PCB board, 3pcs 4 6cm PCB board, 3pcs 5 7cm PCB board. Double Sided PCB Board: Hole-pitch: 2.54mm. PCB universal board. 3 × 2 8cm PCB board.

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