251EU SIZE 90 MAIER BLIND STITCH NEEDLES INDIVIDUAL NEEDLE EACH SCHMETZ
SCHMETZ BEST QUALITY US BLINDSTITCH US STITCHLINE NEEDLES SIZE 251LG #90 LWX5T FOR USE WITH MANY BLIND STITCH MACHINES INCLUDING REX MINISKIPPER ETC. WHICH USE A NEEDLE WITH THE FLAT SIDE ON THE BACK WHEN INSERTED IN THE MACHINE
LG STANDS FOR LONG. THERE ARE A FEW MACHINES THAT USE A 251 OR 251 SHORT NEEDLE.