Single Turn Resistor 25W 30 Ohm Adjustable Taper Ceramic Disk Rheostat Product Name : Rheostat;Material : Ceramic, Metal;Color : As Picture Shown Power Rating : 25 W;Resistance Value : 30;Mounted Hole Dia : 9.5mm/ 0.37" Bottom Screw Diameter : 2mm/ 0.08";Bottom Base Diameter : 41mm/ 1.6" Shaft Size : 33 x 6mm/ 1.3" x 0.24"(L*D);Body Size : 43 x 36mm/ 1.3" x 1.4" (Max.D*T) Net Weight : 88g;Package Content : 1 x Rheostat