Optical trial lens frame optometry eye test, adjustable PD lightweight trial lens frame, eye test glasses optical trial optician accessories healthDE_Nov2023 Made from hardened hollow steel bestsellers_healthUK_Sep2023 Made from hardened hollow steel for EXTRA SHARP CUTTING and an EASY SQUEEZE MECHANISM so no strength needed Nail File Diamond Deb Nail File Set Foot Dresser Stainless Steel Double Sided Diamond Dust Coating Podiatry Foot Care Instruments Professional Quality Product Chiropody File 1 mm Axial indexing of the dial: Left switching disk: 120°~0°~135° Right indexing plate: 45°~180°~60° Degree of rotation of the lens around the optical axes in the frame: 360° Adjustable area of the nose pads: Length: Approx 6 ounces means it will not feel heavy or uncomfortably compressed when worn