This is a Box of 100 Groz-Beckert® DBXK5 Commercial Embroidery Machine Needles. 

Needle System* : DBXK5

This needle is round at the shank and are normally used on industrial embroidery machines. This is a very common needle system used by many Embroidery machines including Baruda, Brother SWF, Tajima and many other industrial embroidery machines.