Check the listing for details. 10 pcs 3x4"(7x9cm) Prototyping PCB Printed Circuit Board Prototype Breadboard. Condition: New. Listed at 7.99 USD. Lot of TEN (10) prototyping single-sided circuit boardsEach measures 7 x 9cm ( 2.8 x 3.5 inches) with 720 through holes (0.1 inch industrial standard spacing) for mounting components. Other sizes and quantities available. Referencing numbers printed on both sides for easy reference of individual holes The board is treated with flux for easy soldering and extended shelf life Item will be shipped from Boston, MA and you will be able to receive it in about 2 to 4 days Return policy: If you are not satisfied with the quality of the circuit boards, you may return them within 30 days upon delivery for a full refund of the winning bid (shipping and handling charge is not refundable). Please email me with your questions.