Noise and vibration can present unwanted problems in an installation, causing damages to sensitive equipment and wiring. These are longer lasting, ribbed vinyl grommets with center hole providing effective and economical noise, vibration and shock isolation. 1/12" I.D (A) X 5/8" O.D (E), GROMMET for 1/16" thickness materials, Weight: 0.025, Color: Black, Size, Pack of 100.