Feature: 1. HIGH QUALITY MATERIAL: The speaker basin stand is made of high quality iron material, which is strong and durable, and can be used for a long time. 2. GOOD PERFORMANCE: The speaker basin frame has high temperature resistance, corrosion resistance, wear resistance and scratch resistance. 3. STRONG PRACTICABILITY: The speaker basin frame is exquisitely made, light and practical, portable, with foot solder tabs, easy to install. 4. EASY TO USE: The reverse side speaker subwoofer basin stand is very easy to use, just remove the old one and replace it with a new one. 5. SCOPE OF APPLICATION: This speaker iron basin frame is widely used for 5 inch speakers, suitable for DIY speakers or repair speakers. Specification: Item Type: Reverse Speaker Basin Stand Material: Iron Outer Diameter Size: Approx. 147mm/5.8in Diagonal Screw Size: Approx. 138mm/5.4in The Maximum Outer Diameter of the Cone: Approx. 128mm/5.0in Secondary Inner Diameter Size: Approx. 118mm/4.6in Bounce Size: Approx. 94mm/3.7in Hole Size: Approx. 32mm/1.3in Open Mounting Size: Approx. 120mm/4.7in Washer Hole Size: Approx. 58mm/2.3in Washer Size: Approx. 42mm/1.7in Pot Holder Size: Approx. 38mm/1.5in Applicable Speakers: for 5 inch Speakers. Package List: 4 x Speaker Basin Frame4 x Foot Solder Tab Note: Please allow some errors due to manual measurement.