The 21 Pack Solid Rubber Stopper Set (Black Lab Plugs, Sizes 000#–8# Assortment) is a versatile sealing solution designed for laboratory, industrial, and household use. Made from high-quality solid rubber, these stoppers provide a tight, secure seal for test tubes, flasks, bottles, and other containers.

This assorted set includes multiple sizes ranging from 000# to 8#, ensuring compatibility with a wide variety of openings. The tapered design allows for easy insertion and removal while maintaining a leak-resistant fit. Durable and reusable, these rubber plugs are ideal for scientific experiments, chemical storage, DIY projects, and general-purpose sealing needs.

Product Specifications

• Product Type: Solid rubber stoppers / lab plugs
• Quantity: 21 pieces per set
• Material: High-quality solid rubber
• Color: Black
• Size Range: 000# to 8# assorted sizes
• Design: Tapered shape for a secure and snug fit
• Features:
  • Leak-resistant and airtight sealing
  • Flexible yet firm for easy insertion
  • Durable and reusable
  • Resistant to wear and deformation
• Applications:
  • Laboratory use (test tubes, flasks, beakers)
  • Chemical and liquid storage
  • DIY crafts and home projects
  • Industrial and workshop use
• Temperature Resistance: Suitable for standard lab conditions (varies by use)
• Chemical Resistance: Compatible with many non-corrosive substances (check compatibility before use)
• Cleaning Method: Wash with water and mild detergent; air dry
• Storage: Store in a cool, dry place away from direct sunlight