Test Tube Rack with 15ml Plastic Tubes, Rack Set contains twelve 15ml screw top graduated plastic tubes and a brightly colored two tiered test tube stand
Timer Minute Minder, 60 minute wind up timer and 5 Second ring, White plastic housing with large black numbers Lays flat on desk or can be hung, Size: 2-3/4x 3x 2-1/4 in