You are buying Prestige Medical Soft Silicone / PVC Replacement Stethoscope Eartips – Threaded – Soft Push on Type, Available in Small and Large Sizes. Many Different Models are Available.Prestige Medical Replacement Stethoscope Eartips, Available in different styles and models. Price may vary depending on eartips. Please note below each styles and models and if they are push on vs threaded and the stethoscope from prestige medical they are compatible with. It’s a durable, compact and lightweight. These may fit other stethoscope brands and styles, however there is no guarantee. No returns on eartips.