Small Size: neck diameter: 8.2cm or 3.22'', for motors circumference within 26.5cm-28.1cm or 10.4''-11''. Fit most 30 pound - 48 pound thrusts. Net diameter: 30cm or 11.9''. Please see product picture for more size detail
Large Size: neck diameter: 9.8cm or 3.9'', for motors circumference within 30cm-31.6cm or 11.8''-12.4''. Fit most 58 pound - 65 pound thrusts. Some 86lb thrusts. Please check the motor size before purchase. Net diameter: 30cm or 11.9''
Crashproof/anti-winding/anti aquatic plants. Stainless steel for saltwater environment