Black & Yellow Luna Putter

Standard adult length is 34 to 35 inches. Buying for a youth? Size by the child's height so posture and eye alignment stay correct:
Under 3'8": 22 to 24 in
3'8" to 4'2": 25 to 27 in
4'2" to 4'10": 28 to 30 in
4'10" to 5'2": 31 to 32 in
Tip: do not size up to grow into. An oversized putter forces an upright stance and disrupts proper mechanics.