Unshudo Okey Soroban (Abacus) - 2 Pieces [Features 1] Large beads, easy for beginners to manipulate. [Features 2] Easy-to-see yellow beads and a refreshing blue frame. [Features 3] Comes with place value stickers for easy understanding. [Materials] Frame: ABS resin / Beads: Styrene resin [Size] 67 x 260 x 20mm / Weight 140g This is a set of two. Thank you! (^^)