Primary (6) Jumbo Test Tubes w/Stand

Chunky, durable test tubes put serious science safely within reach for young students! Supports serious science experiments; plastic tubes are safe at temperatures from 10 to 200 degrees and feature calibration marks (25, 50, 75 and 100 ml). Hand wash. Tubes measure 6 H x 1-1/2 Diameter inches. Ages 3 and up.