Material: This banjo machine head uses zinc alloy and PVC as the materials, which is wear resistant, durable so that can be used for a long time. Spare part: This banjo tuning peg can be used as a replacement part to replace the old or the broken accessory of the instruments. Easy installation: This stringed instrument keys tuner is small in size and portable so that can be installed easily on the banjo. Wide usage: The musical instruments replacement part has a wide range function, which can not only adjust the key of the banjo but also can be used as a special decoration of the instrument. Quantity: There are several kit banjo tuning pegs, so that is enough for the daily usage or the professional repairing needs. Material: Zinc alloy, PVC. Color: White, silver. There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. 4 Pieces Banjo Tuning Pegs(with 1 Piece Banjo Bon-slip Peg, 4 Pieces Bushing).