Key benefits Precise, patient‑specific positioning: a height adjustment knob lets you set the chin rest to the exact height needed for each patient, improving alignment and repeatability during exams or therapy. Comfortable, ergonomic support: the curved forehead and chin trays follow ergonomic principles to reduce pressure and increase patient comfort during longer sessions. Durable, low‑maintenance construction: made from plastic, aluminum alloy and stainless steel with electroplating to resist rust and wear for long service life. Wide adjustability and compatibility: multiple adjustment ranges accommodate different head sizes, treatment chairs and examination setups. Features and specifications Height adjustment: chin rest includes a lifting height adjustment knob for quick, secure positioning. Minimum distance from the bottom to the chin rest: 260 mm; maximum distance: 355 mm. Product dimensions: front plate size 570 x 220 mm. Lifting travel: 95 mm total lift. Adjustable range (base to chin rest): 265–355 mm (10.4–13.9 inches). Chin‑rest to headrest distance: adjustable from 105–200 mm (4.1–7.8 inches). Materials and finish: plastic components, aluminum alloy and stainless steel structural parts, electroplated surfaces for rust resistance and durability. How this product solves problems Eliminates poor alignment: precise vertical adjustment ensures the chin and forehead are positioned consistently, reducing setup time and measurement error. Improves patient comfort: the ergonomically curved support reduces chin and forehead discomfort, helping patients remain still during tests or therapy. Reduces downtime and replacement costs: corrosion‑resistant materials and solid construction withstand clinical use and cleaning protocols. Typical use scenarios Vision therapy and orthoptic clinics: use for controlled head positioning during vision training exercises and assessments. Optometry and ophthalmology exams: secure, repeatable chin and forehead support for instrument measurements and slit‑lamp or similar evaluations. Rehabilitation and orthosis fitting: maintain consistent head positioning during orthotic adjustments or therapeutic procedures. Notes on performance and compatibility Designed for clinical and therapeutic environments where stable, adjustable head support is required. Check measurement ranges against your existing headrests and chairs to ensure compatibility with specific setups. Care and maintenance Clean surfaces with approved disinfectants compatible with plastic, aluminum and electroplated finishes. Inspect adjustment knob and fasteners periodically and tighten as needed to maintain secure positioning.