We can't tell you what airline Anna works for. But we can tell you that two pairs of Clejuso model 15 handcuffs weigh in at just about 3 kilograms (6 lbs). That is a very good workout for a flight attendant's arms, they have to be in good shape to point out the exits and to hand you your drinks. So next time you are on a plane, just look at your flight attendant and imagine her working out... in Clejuso handcuffs. Guaranteed to make your flight a lot more enjoyable!