The 3M™ DBI SALA® Medium Tape Measure Sleeve conforms to the size of virtually any tape measure and allows your tool to be safely tethered while working at height. The sleeve is constructed from a heavy duty neoprene material and is designed to be used with a Tape Measure Holster. Built-in belt/holster clip. Conforms to many tape measure sizes up to 25 ft. (7.62 m).