Desco 21317 is a wrist strap metal blue adjustable 6 foot cord, 4mm.
A. Fixed black glass-filled nylon cap with slotted opening to allow size adjustment.
B. 300 Series Stainless Steel Backplate forms channel to hold up to 10 links of band allowing size adjustment
C. 4mm snap stud machined from 300 series stainless steel. Fits to 4mm spring loaded medical type socket. Coil cord disengages from snap with 1-5 lbs of perpendicular force. Durable, providing long life well beyond that of sheet metal snaps
D. Metal expansion band. Inside links are constructed of 300 Series Stainless Steel.
E. Chrome plate painted surface
F. Size is adjusted by sliding 1 to 10 links of the band into the backplate "C" channel. Minimum circumference = 5.75", Maximum circumference = 13"
G. 300 Series Stainless Steel clip for electrical contact between snap stud and backplate
This item is also sold without the cord: Desco 21307