Universal size: Length 6.3 inch, Width 2.9 inch, Height 1 inch Fit for most brands general aviation headset, compatible with RRP660, KA-1, AC-200 & C20, Retevis EHG001 etc. The foam cushion is super-soft and high density. Package include: 1pc pad Pdflie Replacement Headband Pad with Hook-and-Loop Fastener, Soft Foam Head Cushion Cover Compatible with Peltor and David Clark Pilot Aviation Headsets, GA Headphone Head Band Padding