This set contains the Hand Turbobrush (STB 101), an extra long crevice tool, micro-hose with combination nozzle, and a 9-foot extension hose.  The Turbobrush accessory is fabulous for removing dust, cat hair, etc. from upholstery, drapes, bedspreads, etc.  The longer crevice tool is great for cleaning radiators and behind furniture that is too heavy to move, and for getting in between sofa cushions that are sewn in place. It is also nice getting dust off the top of baseboard trim.  The micro-tool is nice for getting into the little crevices on car trim (air vents, etc.). It is also nice for cleaning laptop keyboards and the air handling grates in the house. 

These attachments fit all Miele vacuum cleaners but can also fit other vacuum cleaners with a (not included) vacuum hose adaptor easily bought online or in stores.