Superior Craftsmanship: Constructed from high-quality rubber materials, each closed rubber grommet offers exceptional flexibility, resistance to aging, and resistance to folding. Designed to provide robust insulation, these grommets are dust-proof, flame-retardant, and help prevent metal friction damage to wires and other materials. Comprehensive Kit Details: The assortment includes multiple sizes to suit various applications: M7.14 (58 pcs), M9.53 (44 pcs), M12.07 (30 pcs), M15.88 (20 pcs), M19.05 (16 pcs), M22.23 (10 pcs), and M25.4 (10 pcs), each designed for effective sealing and isolation of wires through panel openings. User-Friendly Installation: These rubber grommets simplify installation by eliminating the need for a lock nut on the opposite side. Install on one side only; the grommet seals upon placement and opens only when the central membrane is punctured, ensuring a secure and stable fit. Versatile Usage: Ideal for protecting wires and cables from sharp metal edges, these grommets help reduce the risk of damage. Suitable for use in automotive, plumbing, and electrical applications, providing protection against dust, moisture, and other environmental factors. Material: Rubber Color: Black Package Contents: 188 x Closed Rubber Grommet Note: The package includes only the items listed above. Light reflection and display differences may cause slight variations between the color of the item in the image and the actual product. Measurement may vary by +/- 1-3 cm.