5 Piece Test Tube Cleaning Brush Set Size S M L For Lab Glassware, 19mm And 34mm Diameters, Long Bristles For Thorough Tube Wash In Chemistry Beakers And Tubes Your Go To Lab Cleanup Kit

5-Piece Test Tube Brush Set for Lab Glassware (S/M/L)
✔️ S/M/L brushes with durable stainless steel handle and long bristles

These 5-piece test tube cleaning brushes are designed to clean lab glassware such as test tubes, beakers, and graduated cylinders. They come in S, M, and L sizes to fit a range of vessel diameters common in chemistry labs, biology classrooms, and industrial settings.

✅ Package: 5 brushes (S x2, M x2, L x1)
✅ Size details: S 19mm dia × 86mm bristle length × 187mm total; M 34mm dia × 113mm bristle length × 233mm total; L 36mm dia × 121mm bristle length × 264mm total
✅ Material: stainless steel handle, hard bristles for durability
✅ Flexible design: bendable to reach curved interiors without scratching
✅ Applications: clean tubes, bottles, cylinders, pipes, and glassware in chemistry, biology, labs, kitchen, and industry

💡 What is a test tube cleaning brush set used for in lab work?

These handy brushes help keep glassware clean and ready for reuse.

• cleaning test tubes, beakers, and graduated cylinders in chemical and biology labs
• reaching inside narrow tubes with bendable bristles to remove stubborn residue
• helping prevent cross-contamination and ensure measurement accuracy