OYAIDE INS-SQ Smoky Quartz Audio Isolation Pads, 4 Pieces

OYAIDE INS-SQ smoky quartz audio isolation pads, four pieces. Each approximately 20 mm diameter x 6 mm high and 5 g. Mohs hardness: 7; listed load capacity: 200 kg per piece. Can be used alone or fitted into INS-BS multi-base units. Natural stone color and pattern vary. Avoid strong impacts and concentrated point loads, which may cause breakage.