Upper Looper, Necchi #310616 discountable and the 45-degree diagonal makes

and the 45-degree diagonal makes half-square triangle blocks easier to square accurately

Spool Holder (Large & Small)

A few other buttons include a reverse stitch

Use the free arm to efficiently hem pant legs and shirt sleeves

ZigZagger Low Shank Foot fits almost any low shank machine that uses the power of the arm and needle clamp

Upper Looper, Necchi #310616 discountable and the 45-degree diagonal makesGuaranteed to fit Consew Serger Machine Models: ML4, ML94 Guaranteed to fit National Serger Machine Models: N10, N20 Guaranteed to fit Necchi Serger Machine Models: NL4 Guaranteed to fit Supreme Serger Machine Models: ML4, ML94