Description: Features: 100% brand new and high quality Homogeneous sounding board. Widely used in ultrasonic cleaning, medical, beauty and so on. Also supply ultrasonic power supply, with sweeping, adjustable power automotive and aerospace industry, mechanical industry, plating industry, etc. High performance: high mechanical Q-value, high conversion efficiency. Large amplitude, piezoelectric ceramic materials provides good heat resistance. Specification: Power: 60W Frequency: 40kHz Material: Stainless Steel Dimensions: As pictures shown.(approx) Top diameter: 38mm(1.50in) Bottom diameter: 48mm(1.89in) Height: 46mm(1.81in) Inner hole hexagon size: 5mm(0.20in) Bottom screw size: 9.7x10mm(0.38x0.39)(diameter x height) Color: Silver Quantity: 1 set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Transducer 1 x Bottom Screw