SYSTEM	SIZE	DESCRIPTION
DB X K5	7 / 8 / 9 / 10 / 11 / 12 / 14 / 16 / 18	normal needle
DB X K5 PVD	7 / 8 / 9 / 10 / 11 / 12 / 14 / 16 / 18	Titanium coating
DB X K5 CM	7 / 8 / 9 / 10 / 11 / 12 / 14 / 16 / 18	Ceramic coating
DB X K5 KK	8 / 9 / 10 / 11 / 14	short shank
287 WKH	9 / 11 / 14	thick material embroidery
DB X 9ST	9 / 11 / 14 / 16	4 size larger needle eyelet
DB X 1KN	9 / 10 / 11 / 12	high densely embroidery