Super flexible and lightweight material, that made of shape memory alloy. ^^ Transmits the 144-146MHz/430-440MHz Amateur Radio VHF/UHF Bands, Receives 25-1300Mhz. ^^ Approx 16.22", 41.2 cm tall, Handles 10W, black color, Flexible. ^^ This is a soft flexible antenna able to withstand more 'roughness' than a stock radio antenna, all while boosting the signal of your radio significantly! ^^ Can be used as an upgrade for single or Dual Band stock antennas. Great Scanner Antenna Too!