This listing is for a new set of 5 3/4" stock style glass lens - metal back headlight bulbs. This set includes (4) low/high beam headlights with high intensity LED light bulbs (no wiring or bucket modification needed). These have the original shaped prongs on the back so they will plug right into your original wiring harness plugs. These will fit all 1958 to 1966 Studebaker Larks with 4 headlights. Will fit into stock buckets. Each bulb is 5 3/4 inches in diameter. These are glass and we will take extra care in packaging.