IRW ELECTRO SAFE brand ISI marked Electrical Insulating Mats Conforming to IS: 15652-2006 Category III, tested by CPRI, ERDA, NTH, DGS&D etc. Color :- Black SIZE Width = 1.0 MTR Length = 2.0 MTR Class: A For 3.3 KV 2.0 mm Thick Class: B For 11.0 KV 2.50 mm Thick Class: C For 33.0 KV 3.0 mm Thick