Hey Vitamix owners! Lost your blender lid plug or need a replacement? This is exactly what you're looking for. This BPA-free plastic plug fits perfectly into the center of your Vitamix low profile 64oz container lid. Measuring 2.72 inches outer diameter and 1.85 inches inner diameter, it's the exact replacement part you need for adding ingredients while blending. Works with Pro 750 models, VM0158, VM0103, 7500 Series, and Vitamix 300 Professional series. Super important note though - this ONLY fits the LOW profile containers, NOT the high profile ones used with Vita Prep 3 or Drink Machine models. The transparent design lets you see what's happening inside your blender, and the BPA-free material means you're not adding any chemicals to your smoothies or soups. Installation is literally just popping it into place - no tools needed. Super affordable way to keep your expensive blender functioning perfectly without buying a whole new lid assembly. Comes as a single plug, so you get exactly what you need without extra stuff you won't use. Seriously, if your current plug is cracked, lost, or just not sealing properly, this replacement will have your Vitamix back in business in seconds!