MARK3 EZ Putty Impression Material, Regular Set, 300 ml Base & 300 ml Catalyst. Kneadable, very high viscosity material. Non-sticky with exceptional dimensional stability and superior elastic properties (high elastic memory).Work Time 2 min, Set Time 4 min 30 sec. Compare to Flexitime, Genie, Express Putty, Exaflex 300 ml each of base & catalyst