E-futuro&reg; Lot 6 Pcs Temporary Fake Slip On Tattoo Arm Sleeves Kit 92% nylon & 8% spandex Looks real & seamless; easy slip on & off. Stretchable fabric material (92% nylon & 8% spandex). Unisex and one size fits most. Unless you have really huge arms, these should fit comfortably because they are stretchable. Measurement is approximately 18 in. long by 4 in. wide when not stretched