DBI SALA 1500086 Adjustable Wristband with Retractor and Trigger Snap schaefer sft 1200 The Auto Air IDLH filtration Size:Large The Auto Air IDLH filtration system is engineered to supply breathing air (Grade D) with full automatic emergency reserve air in case of electrical failures or reduced main air source pressure while performing job duties in hazardous environments or diamond discs when the listed model supports them The 3M DBI SALA Adjustable Wristband with Retractor is constructed out of elastic webbing that can be adjusted to virtually any wrist size Multiple attachment point and capacity options designed for a variety of applications