24PK Test Tubes, 5ml – Bakelite Screw Cap with Rubber Liner – Borosilicate 3.3 Glass – 3.9″ x 0.5″- Round Bottom – Blank Writable Area – Leak Proof – Eisco Labs

INDUSTRIAL QUALITY || Pack of 12, round bottom test tubes with a 5ml capacity. Each test tube is made of high quality, heavy duty, Borosilicate 3.3 glass. Each tube features a small, 0.6" x 0.3" writable area for easy labeling BAKELITE SCREW CAP || Each test tube is fitted with a Bakelite screw cap with a rubber liner to ensure a leak proof seal DIMENSIONS || Each test tube measures 3.9" tall and is 0.5" wide (including cap) AUTOCLAVABLE || Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Superior chemical durability and heat tolerance. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use