★ Material: Stainless steel ★ Size: Diameter = 1mm, Length = 90mm ★ Weight: 1 piece = 0.5g ★ Quantity: 4 pieces ★ Manufactured to ensure the line contacts the center of the roller. ★ Compatible roller size (Width = 10mm, Diameter = 5mm, Hole diameter = 1.2mm) ※ This is an example and is compatible with sizes sold at major fishing tackle stores. However, it is not compatible with round rollers! ★ Not sold by fishing tackle manufacturers or fishing tackle stores!! ※ Rollers are not included!