You will receive 6 bands.  I do not think that any of these bands have been used.  Each band has its own clasp.  There is also a white and a black "loop" that comes with these.

Each band measures 9/16" wide X 9-3/8" long X 3/8" thick (at the thickest part).  The inside hole opening (where you would put your tracker) is 1/4" wide X 7/8" long.  There is additional room inside the opening.

If you purchase multiple items from me, I will happily combine shipments to save you shipping costs.  Please request an invoice prior to paying.