The U.S. Kids Golf UL48 (122 cm) WT20-S Junior Iron is purpose-built for young golfers between 122 and 130 cm tall — typically around 7 years of age, or approximately 2nd grade. Engineered as part of the DV3 (Distance & Velocity, 3rd Generation) Ultralight line, these irons stand out with a substantial sole and low centre of gravity (COG) that make it genuinely easy for beginners and developing players to launch the ball into the air. Clubhead weight distribution has been optimised using Trackman technology, ensuring every swing produces a consistent, ideal ball flight for this exact player size. Available individually as a 6-iron or 9-iron, each club is sold with a K-Flex graphite shaft sized and flexed specifically for junior swing speeds.
The UL48 WT20-S irons feature a notably wide sole that glides through turf cleanly and prevents the leading edge from digging. By positioning the centre of gravity (COG) as low as possible within the clubhead, U.S. Kids Golf makes it dramatically easier for a young player to generate enough dynamic loft at impact to send the ball skyward. The shallow face design further promotes a high launch angle, keeping the ball in the air longer and producing satisfying carry distances even at moderate swing speeds. This combination turns what might otherwise be a frustrating moment for a 7-year-old into a confidence-building success.
U.S. Kids Golf used Trackman launch-monitor technology — the same ball-flight analysis tool trusted by Tour professionals and club-fitting experts worldwide — to dial in the exact clubhead weight and weight distribution for each size category in the Ultralight line. For the UL48 irons, this means every gram has been placed where it measurably improves launch angle, ball speed, and straightness for a player of this specific height and strength level. The result is an iron that performs optimally out of the box, without any custom-fitting intervention required.
The K-Flex graphite shaft is the heart of the Ultralight performance formula. Graphite construction keeps the overall club weight light enough for a young player to swing at full speed without straining, while the dedicated junior flex profile loads and unloads smoothly throughout the swing. The low kick-point means the shaft bends and releases closer to the clubhead, adding dynamic loft at impact and producing a high, arcing ball flight. Paired with WT20-S heads that are 20% lighter than adult equivalents, these shafts make the full swing feel natural and effortless from the first session on the range.
Unlike one-size-fits-all junior clubs, every club in the U.S. Kids Golf Ultralight range is engineered around a precise height window. The UL48 series is calibrated for players standing 48–51 inches (122–130 cm) tall — typically around 7 years of age. At this exact length and lie angle, the club promotes a correct swing plane, consistent contact, and healthy swing mechanics from an early age. Choosing the right size matters: a club that is too long or too short forces compensations that can ingrain poor habits. U.S. Kids Golf's height-based fitting system removes the guesswork for parents and coaches alike.
| 6-Iron (6i) | 9-Iron (9i) | |
|---|---|---|
| Loft | 33° | 44° |
| Lie | 59.5° | 61° |
| Head Weight | 202 g | 223 g |
| Club Length | 74 cm (29") | 70 cm (27.5") |
| Shaft Material | Graphite | Graphite |
| Shaft Flex | K-Flex | K-Flex |
| Hand | Right Hand | Right Hand |
| Optimal Player Height | 122–130 cm (48–51 in.) | 122–130 cm (48–51 in.) |
| Recommended Age | approx. 7 years | approx. 7 years |
| Club Series | DV3 WT20-S Ultralight | DV3 WT20-S Ultralight |
The 6-iron is the longer, lower-lofted option in this two-club range. With a 33° loft and a 74 cm (29") finished length, it is designed to cover mid-range distances from the fairway or light rough. The wide sole and low COG are especially noticeable on the longer iron, where getting the ball airborne is typically the greatest challenge for young players. The extra mass concentrated low in the clubhead effectively replaces the dynamic loft that junior swing speeds cannot yet generate on their own, producing a high, penetrating ball flight that travels farther and lands more softly.
The 9-iron features a 44° loft and a 70 cm (27.5") length, making it the go-to club for approach shots and shorter par-3 holes. The wide sole and low centre of gravity once again do the heavy lifting, ensuring the ball climbs quickly and stops reliably on or near the green. Its slightly heavier head (223 g vs. 202 g for the 6-iron) reflects the shorter, denser construction of a higher-lofted iron while still staying well within the WT20-S lightweight target. The 9-iron's forgiving design encourages young golfers to focus on their setup and swing path rather than worrying about solid contact.
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