WELCOME TO HUAFENGLAB
SinoFeng Educational Apparatus Int'l Limited
Email:marketing@huafenglab.com,
URL:www.huafenglab.com
Address:HONG KONG,CHINA
Made of anodised aluminum. With holes arranged in 5 rows x 10 holes,and alphanumeric engraved cross reference guide from 1 to 10 and A to E
Mobile:13802971364