Specifications:The violin bridge is compatible with 4/4 Specifications:The violin bridge is compatible with 4/4 full size violin.It has highly sensitive piezo for great performance.This is a violin bridge with embedded pickup, the natural wood bridge has exquisite workmanship.Its 2.5mm diameter plug can link with preamp, EQ, etc. Item Name: Pickup & Bridge Material: Wood, MetalJack Plug: 2.5mm Features: Durable, Fine Workmanship, Violin Parts Bridge Size: 5cm x 4cm x 0.5cm/1.97" x 1.57" x 0.20" (Approx.) Cable Length: 30cm/11.81" (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:1 Set of Pickup & Bridge full size violin.It has highly sensitive piezo for great performance.This is a violin bridge with embedded pickup, the natural wood bridge has exquisite workmanship.Its 2.5mm diameter plug can link with preamp, EQ, etc. Item Name: Pickup & Bridge Material: Wood, MetalJack Plug: 2.5mm Features: Durable, Fine Workmanship, Violin Parts Bridge Size: 5cm x 4cm x 0.5cm/1.97" x 1.57" x 0.20" (Approx.) Cable Length: 30cm/11.81" (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:1 Set of Pickup & Bridge