Description: Function: Frame sets are a highly useful foundational math tool for kids and students to learn base ten. Easily teach multiplication, addition, subtraction, division and fractions. FOR DEMONSTRATING: These Ten Frames measure 6.5x2.64inches. There is no back on the frames and this permits writing or drawing through the boxes on to a whiteboard or using the included 1.02 inch diameter blue and red counters. With extra thick counters that are easy to handle, students can clearly see teacher demonstrations on a whiteboard. Premium Quality: Discs with thickened sheets, much easier to maneuver and perfect for toddler’s small fingers. The size, shape and design of the Ten Frame Set is ideal to allow kids to learn math by manipulating the counters. Easy set up on any metal surface allows learning in an interactive environment. Using this expert-developed, proven, timeless tool for learning basic math concepts, children's confidence will thrive. Specification: Material: Plastic Size (Ten Frames): Approx.16.5x6.7cm/6.5x2.64inches Size (Counters): Diameter 8cm/ 3.14 inch Color: As pictures shown Package Includes: Set A: 2 Pieces Ten Frames Base 20 Pieces Circle Counters Set B: 4 Pieces Ten Frames Base 40 Pieces Circle Counters 1 Piece Guide Book 1 Piece Storage Bag 1 Piece Storage Tank 3 Pieces Dices Set C: 2 Pieces Ten Frames Base 20 Pieces Circle Counters 1 Piece Guide Book 1 Piece Storage Bag 1 Piece Storage Tank 3 Pieces Dices 2 Sets Math Number(2 Pack) Note: Please check the pictures for more details. Please allow slight deviation of measurement for manual measure.