We are offering dental plaster. dental stonei-77-1: extra hard plaster kc-20y, for dental clinicred, yellow, blue, whitei-77-2: extra hard plaster kc-20s, for lab, cuttingmodel etc, red, yellow, blue, whitei-77-3 hard plaster kc-30s, for clinic, lab, universal, red, yellow, blue, whitepacking: 1kg/aluminum bag, 25kgs/ctn40x40x20cm