There are two different types of soroban abacus available via MathSecret.

• Dual Color Basic Soroban Abacus: This basic soroban abacus offers advantage of dual color, enable younger students to easily visualize numbers via color and graphics.   Lifetime limited warranty is included with the purchase of Dual Color Basic Soroban Abacus. 
  * Pruchase Dual Color Basic Soroban Abacus at Amazon ($9.99+shipping; includes $10 discount for online learning)
• Competition Grade Soroban Abacus: Made of sturdy black plastic frame with plastic pearls and pressure treated vertical wood stems, this high quality soroban abacus is capable of fast maneuvering of pearls in extreme speed calculations.  This competition grade soroban abacus is backed by MathSecret’s 7 day full refund policy. 
  * Purchase Competition Grade Soroban Abacus at Amazon (Includes $10 discount for online learning.)

Quantity Order for groups or schools:

• Bulk order in quantity of 10, 20, 25, 50, and 100 are available for both Dual Color Basic Soroban Abacus and Competition Grade Soroban Abacus.  Each abacus comes with $10.00 discount for online learning.  Please contact (888) 910-MATH ext. 6241 for prices and shipping quote.