Description: Pack of 7pcs, random color Recyclable, environmentally friendly recycling Structure, color clear, easy to use The bread plate can be assembled in fixed units Widely used by experiment, test, robot etc. Specification: Color: Random Size: Approx. 2x1.5x1cm/0.79x0.59x0.39inch Hole count: 25 holes Layers: single-sided Insulating material: plastic parts (ABS) Insulation thickness: General Reinforced materials: composite base Package Includes: 7 Pieces Prototype Breadboard Note: Pls allow an error of 1-3mm due to the difference of manual measurement