With pre-tinned holes, soldering components and sensors has never been easier. The board features 4 convenient mounting holes in the corners, allowing you to easily mount multiple boards together. Choose from 5 different sizes to meet your specific design needs. Made from high-quality and durable fibreglass FR4 material, with a thickness of 1.6mm, this prototyping board is built to last. Whether you're working on electronic equipment, industry projects, or even homework assignments, our circuit board is the ideal choice. Introducing our circuit board, the perfect solution for all your electronic projects and DIY experiments. With pre-tinned holes, soldering components and sensors has never been easier. The board features 4 convenient mounting holes in the corners, allowing you to easily mount multiple boards together. Choose from 5 different sizes to meet your specific design needs. Made from high-quality and durable fibreglass FR4 material, with a thickness of 1.6mm, this prototyping board is built to last. Whether you're working on electronic equipment, industry projects, or even homework assignments, our circuit board is the ideal choice. Item Name: Circuit Board Material: Glass Fiber Mechanical Rigidity: RigidLayers: Double SidedInsulation Thickness: Conventional BoardFlame Retardant Properties: Vo BoardProcessing Technology: Electrolytic FoilReinforcement Material: Fiberglass Cloth BaseInsulating Resin: Epoxy Resin (ep)Features: Double Sided, with Mounting Holes, Multifunctional Size Details: 6Pcs, Size: 4cm x 6cm/1.57" x 2.36" (Approx.)10Pcs, Size: 3cm x 7cm/1.18" x 2.76" (Approx.)7Pcs, Size: 2cm x 8cm/0.79" x 3.15" (Approx.)2Pcs, Size: 7cm x 9cm/2.76" x 3.54" (Approx.)7Pcs, Size: 5cm x 7cm/1.97" x 2.76" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes: 32 x Circuit Board