SPECIAL ORDER ITEM: Please allow up to six weeks for delivery.

These Prism sets come in a sturdy wooden case and are available in 2 versions:

• 22 piece set includes: Red, 1/2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50.
• 16 Piece set includes: Red, 1/2, 1, 2, 4, 6, 8, 10, 12, 15, 20, 25, 30, 35, 40, 45, 50.

All prisms measure 37mm Sq.