Waveshare Round 2D Codes Scanner Module, Barcode/QR Code Reader, with LED Indicator, Small Size, Easy to Integrate June_2023_update The most common types are

The most common types are bushings (also called bush)

Split Washers and 8 Flat Washers

Multi-Function Wire StripperCome with self-adjusting jaws ideal for copper and aluminum cables

fits for standard size mailboxes 📪Mailbox Wrap Material:Premium polyester

Waveshare Round 2D Codes Scanner Module, Barcode/QR Code Reader, with LED Indicator, Small Size, Easy to Integrate June_2023_update The most common types areWaveshare Round 2D Codes Scanner Module, Barcode QR Code Reader, with LED Indicator, Small Size, Easy to Integrate Product Features The Barcode Scanner Module (D) is a round 2D barcode scanner module with LED indicator, highly integrated and compact size, suitable for elevator and other code scanning applications. Adopts advanced image recognition algorithms, easy to decode various 1D or 2D codes. Onboard UART interface, can be easily integrated into