Elna Lock Sewing Machine / Serger Double Needle ELZ-90 SIZE 2.0/90 1 PER PACK. Used in sewing parallel rows of stitches and double rows of decorative stitches. Elna Type ELx705 ZWI Serger Twin Needle - 1 Twin Needle per Pack. Elna Serger Models: 604E, 614DE, 624DSE, 704DEX, 744, 904DCX, 905DCX, 925DCX, 945, F3, F4, L1, L2, L3, L4, L4D, L5, L5D, PRO4DC, PRO4DE, PRO5DC, PRO5DE, T3, T33, T34 & T34D. Paff Serger Models: 4874. El x 705 ZWI 2.0/90 ELZ-90