1.Block Heaters. 2.ISO,CE Passed. 3.3years warranty. A & E ... ,Stirrer,Stirrer Hotplate,Melting Point Device,SamplerConcentration,Block Heater,Vortex Mixer,Cold Keeper,Mixer Incubator, Rocker, Shaker, Roller Mixer, PCR,etc.All ... º taper)ADB-0712mm2012.6X47ADB-0812mm2012.6X33ADB-0916mm1216.5X47ADB-1010mm2010.5X47 Dry Block (ISO,CE Passed, 3years Warranty)