The QuickMedical Wall Growth Chart tracks height all the way up to 6 ft 6 in (198 cm) and measures in increments of 0.25 in (or 0.5 cm). The Height Chart starts at 0 and is placed along the wall starting at floor level. The adhesive-backed QuickMedical Wall Growth can be applied to any clean, dry and smooth surface and will stick well to wood (preferably sealed), hard plastics, glass, steel, aluminum, etc. Blue text over a white background provides easily recognizable reference points even under natural lighting conditions. The wide margins, designed to provide room for handwritten notes, with the 1-mil polyester laminated covering, combine for an ideal chart for keeping long term growth records. The Head Piece is constructed of strong and durable wood with a smooth finish. The Growth Chart Head Piece can easily be taken from room to room in a clinic, or anywhere where measurements need to be taken with a height chart. The QM338 and QM338HP are proudly made in the USA.