The Ninja Replacement Lids are designed for the 3.5" Sip & Seal Flip Top Nutri Ninja cups. These black plastic lids come in a set of 2 and are specifically made for the Ninja brand. Perfect for those who need to replace missing or damaged lids on their Nutri Ninja blender cups, these replacement lids ensure a secure seal for your smoothies or soups. The compact size makes them easy to store and transport, making them a convenient accessory for your kitchen.