3M Dual Lock Reclosable Fastener 400 SJ3463

Black, polypropylene reclosable fastener with rigid backing, rigid backed circle with hole 400 stems per square inch, 3/16 inch diameter washer with 0.16 in (4.1 mm) hole.
Black, polypropylene reclosable fastener with rigid backing, rigid backed circle with hole 400 stems per square inch, 3/16 inch diameter washer with 0.16 in (4.1 mm) hole.