Review on 🥤 Nutri Ninja 24-Ounce BPA-Free Tritan Cup with Spout Lid - 2-Pack: Perfect Blend for Nutri Ninja Blenders (XSK2424) by Keith Ostby

**Edited** I ordered a new blade for my BL450 and it works with these cups. I have to use the old blade with the old cups and the new blade with the new cups, but at least I can keep using my ninja. I have a BL450-70 Professional. According to the product description, they are suitable for the BL-450 series, but do not provide a reliable seal. I had a holey mess in my ninja and drops were flying everywhere. I would not recommend these to anyone with a BL450-70 Pro as they are liquid free as well as the original cups that come with Ninja. The box that these cups come in clearly states that they are compatible with the Auto-iQ BL480/490/640/680 series. The BL450 series is not listed on the product packaging. From the seller's product description: Color: Clear-1 Enjoy personalized smoothies and juices on the go with our 24oz 2 packs. Tritan Nutri Ninja Cups with Sip & Seal Lids Attach the Pro Extractor Blade Assembly to the Tritan Nutri Ninja Cup and blend whole fruits, vegetables, nuts, seeds and ice. Nutri Ninja Tritan cup and two Sip & Seal lids. All components are BPA-free and dishwasher safe. Compatible with the BL450, BL480, BL640, CT640 and CT680 series.