Vintage Callaway Steelhead X-16 4 Iron System UL 55 Light Flex Graphite Single

Brand: Callaway Golf

Model: Steelhead X-16

Club Type: 4 Iron (single)

Shaft: Callaway System UL 55 Ultra Light graphite

Flex: Light Flex (shaft marked "SYSTEM UL 55 LIGHT FLEX" and "ULTRA LIGHT")

Grip: Golf Pride

Head Design: Cavity-back with perimeter weighting for added forgiveness

Loft/Number: 4 (stamped on face)

Era: Early 2000s Steelhead X-16 series (vintage category)

Visible Markings: "Callaway Golf" and "Steelhead X-16" on cavity badge

Notes: Small red paint mark near the face/topline area as shown; club only, no headcover

Please review all photos for details of shaft labels, grip, and head condition.