Check the listing for details. Dental Strong/Weak Suction Rubber Snap Saliva Ejector Adapter Replacement Tip. Condition: New. Listed at 3.79 USD. Features:Condition: 100% Brand NewQuantity: 10 PcsSize app: Length:2.5cmSmall Hole:Outer Dia:1.1cm,Inner Dia:0.6cmLarge Hole:Outer Dia:1.6cm,Inner Dia:0.85cmMaterial: RubberColor: As picture showConversion: 1cm=0.39inch/1 inch=2.54cmNotice:1. Due to the light and screen difference, the item's color may be slightly different from the pictures.2. Please allow 0.5-2 cm differences due to manual measurement.3.Thank you for your kindly understandingPackage:10/20/50/100 Pcs FDA Statement: The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.