4 piece  Fine Cut Crystal knobs. These are cut and casted by hand, so overall cut of the glass may slightly vary from piece to piece.
These beautiful glass knobs are approximately 1" Total Projection from base, and have a 1.5" Diameter at the top. Each package comes with 4 Fine Cut glass knobs with all of the needed bolts, washers, and spacers for mounting. 
Screw Length: 1.5" Long 
Each package contains 4 knobs.