FENICAL Fat Buster Calorie Off Massage Slimming Shaper For Arms (Black) Color: Black. Material: Nylon + spandex. Length: Approx. 22cm 35cm. Fit smoothly under your clothes to give your arms a slim look. Designed to keep flabby arms at the desired positio and take calories off with long term usage due to the wave massage weaving. Recommended Usage Frequency: 46 hou daily (not during bedtime).