General description The 3X Sanding Pad Backing Plate Back Holder is designed for use with the DAS-21E and other compatible dual action polishers. This 5-inch backing plate features ventilated cooling channels that help reduce heat transfer during operation, making it ideal for various polishing tasks. Technical specifications Size: 125 mm (5 inches) Max operation speed: 12000 rpm Material: Plastic Color: Black + Red Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with DAS-21E and partial models of dual action polishers Suitable for use with all grades of pads and polish Usage This medium density backing plate is versatile and can be used with various polishing pads to achieve desired results. Other information Package contents: 3 x Sanding Pad Backing Plates Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.