Miller Single D-Ring Body Belt with 3-Inch Back Pad, Medium (3NA/MBK) USE ON ITS OWN: This body belt features quality craftsmanship and when used on its own is for work positioning only FOR WORK POSITIONING: The single D-ring allows for optimal work positioning; measures 35"  43" (889  1092 mm) USE WITH SAFETY HARNESS: The body belt can be used in conjunction with a full-body harness to provide safe fall protection SUPERIOR COMFORT: The body belt features a 3-Inch back pad for longwearing comfort on the job