This is a brand new, never used Shimano CN-M9100 XTR Chain 12sp 116L that does not come in its original packaging.
Greater chain retention to extend portion on the end of inner plate to firmly hold the tooth both front and cassette sprocket. Enhancements to shifting performance. Easy connect. Quick assembly tool also available. Non-reusable. Smoother driving even over bumpy terrain. Compatible with new generation of drive train.