Fangrui Product Details Features: 1. This Is A Breadboard Development Kit That Provides An Experimental Platform For / W. 2. It Is Equipped With Led Lights, Buttons, Buzzers And Breadboards, Making S Experimental Circuits More Convenient. 3. Among The For / W Kits, This Is A Very Cost-effective Product. 4. Easy To Use; Plug And Play; Built-in Led Light; Built-in Button And Built-in Buzzer; 5. Built-in Half-size Breadboard; Suitable For Beginner Users To Build Their Own Circuits; Description: 1. Size: About 80mm X 145mm 2. Type: W Gpio Expansion Board 3. Material: Pcb Color: As Shown Package Contents: 1 X Breadboard Expansion Board 1 X Female-to-female Cable 1 X 65pin Jumper 1 X W 1 Set Of Screw Mounting Accessories Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real