It consists of a roll of a specially perforated band that can be cut to a required length and an adjustable fastener that interlocks to make any diameter required.
NSN 5920-01-269-4191
NSN 5998-01-359-8822
NSN 5950-01-056-8518
NSN 5895-00-069-2811
NSN 5895-00-188-3350
NSN 6110-00-868-6361
NSN 6610-00-403-1991
NSN 5996-01-181-5438
NSN 5950-00-082-1616
NSN 6320-01-216-1678
NSN 5915-00-764-2632
NSN 6105-00-583-3157