These are replacement coils for the Penguin by Joyetech.
At River City Vapes we offer two coil options for the Penguin; a 0.25 Ohm direct to lung (DTL) coil and a 0.6 Ohm mouth to lung (MTL) coil. The 0.25 Ohm coil is made of SS316 stainless steel. The 0.6 Ohm coil uses Kanthal.
The Atopack JVIC coil heads are sold in packs of 5.