Wright cupholder made for their standing lawn mower series.   Uses existing bolts.  Measures approx 4" between the two mounting holes.  Hole in cupholder measures approximately 3.5" inside foam 3.72" if you remove foam.  Adjustable lower stop for smaller bottles  Made from 1/8" stainless and 3/8" 6061-T6.   Made 100% in the USA