Easy to use and clean! They are what might be called a lifestyle brand which epitomises the industrial, clean Scandinavian design school. It?s sturdy, durable, and pleasing to look at! Women like! ?????? Tom F. I sent them back (AMAZON PRIME IS GREAT, BUT THE VENDOR DID NOT OFFER FREE RETURNS AND IT COST $9. I offset the racks and installed them sixteen inches on center. The fluid is actually ear wax in liquid form as my body is trying to push out whatever is infecting my ears. Great pizza blend and perfect addition for Korean Garlic Bread. Ive had and have been using these almost continuously for about 2 weeks, and just had to re-charge them for the first time.