Simplified Cable Management: The Wall Grommet simplifies cable routing, eliminates clutter, seals wall openings and protects cables from sharp edges. Easy to Install: The wall grommets for cables is small and compact, Simply drill a 1-inch hole in the wall and install. Wide Application: This cable grommet facilitates seamless cable routing through walls, it finds wide application in homes, offices, and schools, ensuring a neat and organized work environment. Material: plastic colour: Black Package Contents: 8 x Wall Grommet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.