These are 0.15uF (150nF) self-healing MKP (Metallised Polypropylene) capacitors, made by Iskra.
They are Class X2 and rated at 275VAC, designed for line-to-line mains use, particularly mains suppression.
They are new and unused but have been sat in a bag for many years so selling as "New Old Stock".
Price is for a pack of 5. I'm open to discounts if you require larger quantities.

Model: KNB1560
Voltage: 275VAC
Tolerance: 10%
Length: 18mm
Height: 13mm
Width: 7mm
Pitch: 15mm

Any questions, please ask.