Check the listing for details. 7 Pcs 15/16"(24mm)Drill Hole,9/16"(15mm)ID. Silicone Rubber Grommet, White. Condition: New. Listed at 12.72 USD. These silicone rubber grommets are widely used to cover or protect holes and protect pipes or wires from scratches and damage from rough corners or surfaces. Commonly used in hydroponic systems, home gardens, irrigation systems, mechanical equipment, computer equipment, lighting equipment, electrical engineering, etcSpecificationColor: WhiteMaterial: Silicone RubberUpper Diameter: 35mm/1.4 InchHeight: 15mm/0.6 InchDrill Hole: 24mm/15/16 InchInner Diameter: 15mm/9/16 InchGroove Width: 9mm/0.4 InchPackage List: 7 Pcs x Silicone Rubber GrommetsAdvantageExcellent Performance: Made of soft and flexible silicone rubber, these grommets are waterproof, wear and pressure resistant, high and low temperature resistant, flame resistant, aging resistant, not easy to tear, crack, deform, and can serve you long.