About This

• Precise Compatibility: Expertly engineered as a direct replacement for Ninja BlendBOSS Personal Smoothie Blender Cups & Travel Tumblers, with tailored dimensions for a snug, gap-free fit matching the original seal’s performance.
• Superior Leak-Proof Performance: Creates an airtight barrier to prevent leaks and spills during high-speed blending or on-the-go use, keeping your bag, countertop and hands clean and dry.
• Food-Safe & Long-Lasting: Made of high-quality food-grade silicone (FDA compliant), BPA-free, odorless, heat/wear-resistant, and safe for daily use with smoothies, shakes and beverages.
• Effortless Replacement: Soft, flexible silicone allows quick, tool-free installation and removal, letting you replace old/worn seals in seconds without hassle.
• Hassle-Free Cleaning: Easy to clean by hand or dishwasher-safe, promoting hygiene and extending your blender cup’s service life.