• 【Premium Aluminum Alloy Construction】Made from high-quality aluminum alloy tube with stainless steel top cover, providing superior durability and lightweight portability while protecting pills from damage. • 【Waterproof Sealed Protection】Built-in waterproof rubber sealing ring creates airtight seal to prevent moisture and water damage, keeping medications dry and effective. • 【Permanent Laser Engraved Labels】Day labels are laser engraved for long-lasting durability that won't fade or wear off, paired with elegant colorful exterior design. • 【Large Capacity 7-Day Storage】Upgraded spacious compartments accommodate multiple pills, capsules, or fish oil supplements, meeting complete 7-day medication needs. • 【Stackable Modular Design】Stackable combination design allows customizable usage duration adjustment, with compact body that easily fits in pockets or bags for convenient carrying. • 【Twist-Lock Safety Mechanism】Features rotating lock structure with non-pop design to prevent accidental opening and keep children and pets safe from accessing contents. Specifications: •Material: Aluminum Alloy + Stainless Steel •Dimensions: 16 x 3.5 cm •Height: 6.3 inch •Diameter: 1.38 inch •Weight: 5.4 oz / 154 g •Capacity Per Compartment: SUN: 8 PCS, MON: 16 PCS, TUE: 19 PCS, WED: 36 PCS •Sealing Type: Airtight with Water-Proof O-ring •Extra Accessories: 3 Extra Sealing Rings Package included: •1 x Medicine Box