0-852-24671765
No. 11, 7/F, Tower A2, Hang Wai Ind. Ctr., No. 114, Kin Wing St., N.T., Hong Kong
High quality non-toxic school teaching chalk board white box packing color chalk, US $ 0.04 - 0.07 / Piece, YES, COLOR, Any, 9mm(dia) x 100mm(L).Source from HANG KEI STATIONERY COMPANY LIMITED on Waimaotong.com.