The Petzl Picchu is perfect for young climbers. Constructed from lightweight and comfortable but no less robust materials, it is specially sized for children and adjustable in the chin, nape and headband for a perfect fit. Your kids will love the bright, fun colours too!Robust construction for long life Lightweight and comfortable to wear on the head Adjustable chinstrap, nape height and headband for an extremely comfortable fit Specifically sized for children between the ages of 3 and 8 (48-54 cm headband) Material(s): ABS shell and expanded polystyrene linerCertification(s): CE EN 12492, UIAA, CE EN 1078, CPSC safety standardOne size