Exclusive Stanley Fit : Specially made only for Stanley 20‑40oz tumblers with 2.83‑2.95 inch bottom diameter. Not compatible with other brand cups. Snug fit keeps the boot secured to tumbler bottom for daily use. Please confirm your cup model before purchase.
Great for Indoor & Outdoor Use : Adds extra base thickness after installation, may not fit car cup holders and not recommended for car use. Perfect for office desk, yoga, camping, picnic and other indoor or outdoor scenarios.
Shock‑Absorbing Protection : Flexible silicone absorbs impact to protect tumbler base from dents, scratches and scuffs caused by bumps or drops. Anti‑slip surface prevents sliding on smooth tabletops.
Glitter Style & Multiple Colors : Stylish glitter finish upgrades your tumbler look. Various trendy colors to match your Stanley cup for personalized appearance.
Easy Install & Clean : Soft stretchable silicone for quick installation and removal without tools. Rinse directly under running water, reusable for long‑term daily use.
