Thank you for viewing. AET Insulator Next Generation Vibration Isolation Pad VFE4005H / 4pcs x2 sets. 40mm square x 5mm thick The "H" at the end of the model number indicates a grade that prioritizes sound quality. 4 pieces per pack x 2 packs I bought these with the intention of receiving a set of audio equipment from a relative, but the plan fell through due to damage during transport, so I had been storing them. I opened the package to check the installation location, but I never ended up placing speakers on them, so they are unused. Although they are unused, please understand that they have been in someone's possession once. They will be shipped via Rakuraku Mercari's Nekopos service.