EISCO 6PK Equilateral Prisms 3pc Set - 1", 2", & 4" Lengths, 25mm Face Size - Acrylic - Classroom Pack (Six, 3pc Sets - 18 Pieces Total) Labs electronics3 sound insulation performance is good

sound insulation performance is good

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EISCO 6PK Equilateral Prisms 3pc Set - 1", 2", & 4" Lengths, 25mm Face Size - Acrylic - Classroom Pack (Six, 3pc Sets - 18 Pieces Total) Labs electronics3 sound insulation performance is goodEISCO 6PK Equilateral Prisms 3pc Set 1", 2", & 4" Lengths, 25mm Face Size Acrylic Classroom Pack (Six, 3pc Sets 18 Pieces Total) Labs Product Features 3 prisms 25, 50 and 100mm long prisms 1" or 25mm sides Classroom set of 6 sets of 3 = total 18 prisms