Pack of 40pcs Heavy-Duty High-Grade Borosilicate 3.3 The welded steel frame adds

The welded steel frame adds extra stability

but it's also a great tool for homeschooling or individual study

It may also be used for the parallel or series combinations of two cells

Durable Plastic Baseboard: The high-quality plastic baseboard provides a sturdy foundation for constructing and testing electrical circuits

Stainless steel stretching inner container and roof cover

Pack of 40pcs Heavy-Duty High-Grade Borosilicate 3.3 The welded steel frame addsIncluded: 40pcs Heavy Duty High Grade Borosilicate 3. 3 Glassware 15cm Round Bottom Test Tube + 10pcs Pipette + 2pcs Hopper + 1 Label Paster. Autoclavable, with superior chemical durability. Low temperature gradient can withstand high temperatures & thermal shocks. Premium Quality: Test tubes are made of high quality, heavy duty borosilicate 3. 3 glass. Designed for use in professional laboratories but is an ideal choice for science classrooms and