Stamps watches have inter-changeable faces and bands, which allows for mix & match by mood, clothing or weather. They also have a reusable sticky back for sticking on computers, fridges, etc. Watch faces and arm bands are sold separately.mix, match, change your mood! Limited only by your imagination.s.t.a.r.t.e.r. Pack - buy any 2 faces and 3 leather bands for $139.95. -enter the code starter at checkout.view the entire range of stamps watches here.