Lightweight for portable carry,High quality for durable and long-lasting use Characteristic and exquisite design with pleasant color and brightness Fit for Shaft Hole Dia.6mm/ 0.23"; Small Openings Will Make the Installtion More Close Height: 12.5mm/ 0.50"; Top diameter: 17mm/ 0.67"; Base diameter: 26mm/ 1.03" 4pcs clear knobs with White numbers for Gibson, Les Paul, Epiphone style electric guitar, Weight: 0.0440924524 Pounds, Manufacturer: Alnicov