1.Product Includes 8 different prebuilt coil types, 6pcs for each type, 48pcs 2.Made from KA1, Iron-Chromium-Aluminum alloy3.The alloy has high resistivity and great oxidation resistance4.Each coil type is divided in a convenient compartmentalized case that is perfect for safe travel and storage5.Perfect for RF Transmitters / Receivers, FM Radios, a resistor in DIY electronics or for craft wire projects, and other electronic projects 48pcs A1 Tool Prebuilt premade Coils Clapton Quad Hive Alien Fused Clapton Mix Twisted Coil for RDA RBA AtomizerMaterial: AluminumColor: SilverPacking size: 10.5*10.5*3cmWeight: about 40gPackage Contents:6*Clapton coil Resistance: 0.8 ohms6*Hive coil Resistance: 0.5 ohm6* coil Resistance: 0.36 ohms6*Quad coil (Quad Coil) Resistance: 0.36 Ohm6*Flat twisted coil Resistance: 0.36 ohms6*Mix twisted coil Resistance: 0.45 Ohm6*Fused clapton coil (fused Clapton coil) Resistance: 0.45 ohms6*Alien coil (Alien Coil) Resistance: 0.45 OhmOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.