Major Science offers three different sizes of dry bath aluminum blocks for you to choose. We provide top quality and consistent aluminum blocks for your dry bath incuabtors. Mini Dry Bath Blocks are for the Mini Heating and Cooling Dry Bath Incubators, Dry Bath Blocks are for Genius and Elite Dry Bath Incubators, Ultimate Dry Bath Blocks are for Ultimate Dry Bath Incubators. Beside this, Major Science offers you the Metallic Thermal Beads as an alternative to the dry bath aluminum blocks for all dry bath incubators.