25Pcs 20mm Black Phenolic Screw Caps, Leak-Resistant Bottle Lids for Boston Round Bottles, Chemicals, Cosmetics, and Storage

Product Description: Features: Designed with a polycone liner to help create a tight seal, reducing spills during storage or transport. Strong phenolic construction resists chemicals, cracking, and deformation for reliable long term use. Smooth screw on design allows easy tightening and helps keep contents safely contained. Suitable for Boston round bottles used with cosmetics, crafts, and general storage needs. Product Specifications: Material: Phenolic Resin Color: Black Size: 20mm/0.78inch Package contains: 25Pcs Black Phenolic Screw Caps NOTE: Please allow 1-2mm difference between actual and manual due to manual measurement. The color you actually see may be slightly different due to different displays.

• Package Including: You will receive 25Pcs Black Phenolic Screw Caps. Size: inner diameter: 20mm/0.78inch, outer diameter: 23mm/0.9inch, height: 12mm/0.47inch.
• Leak Resistant Polycone Seal: Designed with an integrated polycone liner that helps create a tight seal, supporting spill prevention and reliable storage for liquids used in chemicals, cosmetics, and daily solutions.
• Premium Phenolic Construction: Made from strong phenolic material that resists cracking, warping, supporting long term use without deformation or unwanted odors.
• Secure Screw On Closure: Smooth internal threads allow consistent tightening, helping the cap stay firmly in place during handling, transport, or repeated opening and closing.
• Wide Bottle Compatibility: Designed for Boston round style bottles commonly used for cosmetics, crafts, and general storage, offering a practical and dependable closure solution.