Humbucker size Filtertron® pickup cover These will not fit Gretsch® Filtertron® pickups.  These will fit Lollar's Lollartron pickups H opening for pole screws Overall dimensions are 2.75" x 1.5" x .74" (69.5mm x 38mm x 19mm) Please verify all measurement before placing your order. Available in Black Chrome, Chrome, Gold, Nickel, Pearl Chrome, and Raw (non-Plated) Qty 1 pickup cover Please Note: Because of the large top radius, these will not fit directly over standard humbucker pickups.