Chunky, durable test tubes put serious science safely within reach for young student's. Supports inquiry-based investigation and hands-on observation. Plastic tubes are safe at temperatures from 10°-200° F and feature calibration marks (25, 50, 75 and 100 ml). Hand wash. Includes 6 test tubes with lids, stand, and Activity Guide. Tubes measure 6" H x 11/2" in diameter.
