Features: SYB170 Standard Breadboard with 170Hole:This ABS breadboard features 170 standard connection points for quick circuit prototyping without soldering. Easily insert wires or component leads into the holes to establish connections, ideal for electronics training, projects, and microcontroller debugging. Durability Phosphor Bronze Clips for Stable Conductivity :Equipped with high elasticity copper alloy clips that securely grip components. Each 5 hole row maintains consistent conductivity with minimal power loss, preventing loose connections during prolonged testing sessions. Compact Design with Expandable Functionality: Features side grooves for stacking multiple boards. Its portable size makes it perfect for classroom demonstrations, maker fairs, or on the go circuit prototyping needs. Flame Retardant ABS Construction:Made with heatproof ABS ABS that prevents accidental short circuits. The insulated base withstands routine experiment temperatures 2.54Mm national standard hole spacing: Standard 2.54Mm hole spacing, perfectly matching in line resistors, capacitors, chip pins and conventional wires, and can be adapted to all common electronic components on market. Specifications: Component:ABS Size:Approx.35X47mm/1.38X1.85In Features:Factory continuity inspection and screening,2.54Mm national standard hole spacing,Highly wear-resistant shell, Package Includes: 1pc Breadboard (Random Color) note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.