Surfing 10PCS Durable Plastic Banjo Slotted Nuts for 4 String Banjo Guitar Replacement Parts This banjo slotted nut is made of plastic High quality and testing is fine Guitar Replacement Nut with excellent workmanship, it is also fit for Mandolin Color: Ivory Nut Size (L X W X T): 1.18 x 0.24 x 0.35 inches / 30 x 6 x 9mm