Each card pack includes 20 lessons on 10, 2-sided cards. Grades 3+.

Sale Price: $5.00

This 5-digit counter is driven by a synchronous motor for accurate timing that is unaffected by voltage fluctuations or line load. 0.1 to 9999.9 seconds model has an illuminated timing switch and push button reset which allows timing of sequential procedures. 4" x 7" x 4", 120V AC 60Hz, 240V 50Hz

Sale Price: $182.90