421 Buna-N O-Ring, 70A Durometer, Round, Black, 4" ID, 4-1/2" OD, 1/4" Width (Pack of 5) June_2023_update The black vinyl cover protects

The black vinyl cover protects clear plastic pages where you can slide in business cards you need to keep handy

and they are safe for children to use

ALL DAY COMFORT: Super lightweight mono telephone headset with super comfortable fit and adjustable headband to fit all head sizes

Get 4 pairs of five toe socks with 1 purchase

421 Buna-N O-Ring, 70A Durometer, Round, Black, 4" ID, 4-1/2" OD, 1/4" Width (Pack of 5) June_2023_update The black vinyl cover protects421 Buna N O Ring, 70A Durometer, Round, Black, 4" ID, 4 1 2" OD, 1 4" Width (Pack of 5) This O ring is made of black Buna nitrile, is round in cross section, has a durometer of 70A, and is designed for use in a wide variety of sealing applications. Buna nitrile can have high tensile strength, and abrasion, tear, and compression set resistance. It can be used in temperatures between 30 degrees F ( 34 degrees C) to 250 degrees F (121 degrees C), and is