Schmetz Serger Needles have a sharp point for all fabrics. Use the recommended needle size and type (either household or industrial) for your model. Elna ELX705 Assorted Size 80/90- Includes two 80/12 and three 90/14 overlock serger machine needles. These needles are designed for use in electronic multi-purpose sergers that do the overlock cover safety and mock safety stitches. Not suitable for normal home sewing machines or embroidery machines. Machines should specify ELX705.