Small 18 oz replacement cups with Sip N Seal lids — blend, seal and take your drink with you Key benefits - Blend-and-go convenience: Screw on the Sip N Seal lid after blending to take your drink with you—no need to finish it immediately. - Reliable fit and performance: Designed to match the size and function of the original Nutri Ninja small blending cups so your Auto‑IQ or Duo blender works as intended. - Easy measurement and cleanup: Built‑in standard and metric measurement markings make recipes repeatable. Top-rack dishwasher safe and BPA free for safe, low-effort care. Compatibility and fit (important — please verify) - Compatible with Nutri Ninja Auto-iQ and Duo blenders: BL480 BL481 BL482 BL490 BL640 BL680 BL450 BL482 BL682 BL642 BL640 and Duo Blenders. - Check your model number: Please see the 4th picture for the model number location before ordering. - Size: These cups have a 3 7/8" diameter (a little less than 4") and hold 18 ounces. - Not compatible: Does NOT fit Ninja blenders that have a 3 1/8" diameter or that originally came with 16 ounce cups. Measure your cup diameter — it must be about 3 7/8". What’s included - Two 18 oz replacement cups with Sip N Seal lids (2-pack), ready to blend, seal and go. Product features - Sip N Seal screw-on lids for secure transport - 18 ounce capacity per cup - Standard and metric measurement scale lines for precise measuring - Top-rack dishwasher safe - BPA free Practical uses (how customers typically use these cups) - Commute or travel: Make a morning smoothie, screw on the Sip N Seal lid and take it to work or on your commute. - Gym or class: Blend a protein shake, secure the lid, and carry it in your gym bag without leaks. - Shared household or partner use: Two cups in the pack let two people have an extra replacement cup ready or share with a friend. How to confirm fit - Measure the diameter of your existing cup — it should be approximately 3 7/8". - Check your blender model number against the images and the model list above. - Do not buy if your blender came with 16 oz cups or has a 3 1/8" diameter cup. Order this 2-pack of 18 oz Sip N Seal replacement cups if you want portable, measured, dishwasher-safe replacements that are compatible with the listed Nutri Ninja Auto‑IQ and Duo blender models.