- Combination Safe Box Taiyo TS377K1C-RBW (51kg) - Brand: TAIYO - Material: SECC Steel with Special Cement, 1h Fire Rating = 1010C, Drop Test at 4m. - Size: 480(W)x400(D)x377(H)mm (Outer), 348(W)x272(D)x213(H)mm (Inner)