Standard： 1220*4000mm

Model NO：TR—620

Property of product：

1、Environment：use non-poisonous，no objectionable odor material，choose suitable for our eyes and low reflect light，protect teachers and students eyesight

2、Durability：normally，it can be used more than eight years when match up Truman water-based pens，and easy to clean within four weeks。

3、Practical applicability：not easy to wear nib，have an effective of showing color，you can look at the board no matter where you sit down in the classroom。