Pin Spacer Performance: 1)Pin spacer is designed as our special form. 2)Longer fixing distance than other factory 3)Hard chrome plating 4)Round and oval rod for selecting 5)Smooth surface for high quality yarn Size as following: 1.80mm 2.00mm 2.25mm 2.50mm 2.75mm 3.00mm 3.25mm 3.50mm 4.00mm 4.25mm 4.50mm