【Precision Compatibility】Designed exclusively for Stanley Quencher H2.0 & 1.0 FlowState 40 oz Tumblers, Always verify your tumbler dimensions before purchase
【Premium SK Material】Crafted from food-grade SK crystal-clear plastic, BPA-free, odorless, and built to last.Enhanced with dual-slider leak-proof technology for superior impact resistance and reusable safety
【Upgraded Slider & Silent Seal】Taller ergonomic sliders glide effortlessly, while the 90° twist-release mechanism allows full disassembly for deep cleaning. Features a noise-dampening seal to eliminate clanking during closure
【Straw & Accessory Ready】Accommodates 6-8mm reusable straws for hands-free sipping. Includes a built-in charm hole to personalize your tumbler with decorative straps or keychains
【Spill-Proof Confidence】Advanced double-seal design prevents leaks in bags or cup holders. Tested for secure travel use – ideal for active lifestyles, gym sessions, and on-the-go hydration