The big size is suitable for the early stage of full finger grip;<br> The middle size is suitable for patients whose fingers have certain grasping function but with poor flexibility;<br> The small size is suitable for patients with better finger functions, and it is used for exercising finger flexibility.<br> Very smooth, no glitch, not scratching the hand<br> Made of solid wood, free from harmful substances<br> The base is a composite board,uniform distribution, the same depth, the stick will not be skewed.<br> Size: Approx.<br> Wood Board<br> S: 18 x 14 x 2 cm / 7.08 x 5.51 x 0.78 inch<br> M: 24 x 20 x 2 cm / 9.44 x 7.87 x 0.78 inch<br> L: 34 x 2 cm / 13.38 x 11.02 x 0.78 inch<br> Wood Stick<br> S: 7 x 1.5 cm / 2.75 x 0.59 inch<br> M: 8 x 2 cm / 3.14 x 0.78 inch<br> L: 9 x 2.5 cm / 3.54 x 0.98 inch<br> Number of Sticks(Random Color): 20 Pieces<br> Material: Wooden<br> Specification:<br> Through a series of actions: use different fingers to fit, pull out, insert a wooden stick, change the hole, pull out, insert it, pick up the designated stick, enhance the control of the fingers and upper limbs, and improve hand-eye coordination.<br> Package Includes:<br> 1 Piece Training Wood Board<br> 20 Pieces Wooden Sticks(Random Color)<br> Note:<br> 1.Please allow 1~3 cm error due to manual measurement, thanks.<br> 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you.