Specifications:Features:- 4 pcs of volume tone control knobs- The central hole for Pots is approx. 6mm in diameter.- High quality transparent Acrylic material.- Transparent knobs with black numbers on it.Color: TransparentMaterial: Plastic with acrylic (Organic glass) transparent housingSize: Approx. 26 x 24 x 12mmInner Diameter: 6mmNet Weight: 4g (1pcs)Package Weight: 22gAfter Sales Service: 1 Year WarrantyPackage Weight : 22 G / 0.78 OuncesPackage Dimensions (L*W*H) : 115*60*60 MM / 4.53*2.36*2.36 InchesRetail Packaging: Yes, General BoxPackage Include:4 x Knob