SPECIFICATION-Core Shielding: 0.5 mm Pb lead-Materials: lead-rubber laminate-Neck circumference: 56cm/22.04 inch-Length: 15cm/5.90 inch-Thickness: 0.5cm/0.19 inchPACKAGE:1* Thyroid Shield CollarCautions-Avoid contact with sharp objects during use or storage.-Lay flat—never fold—to prevent cracks and leakage.-Keep away from direct sunlight, heat, acids, alkalis, and other chemicals.-Store in a ventilated, non-corrosive environment below 80°C.Service Life: Normally 4–5 years.If the product has been used beyond this period or very frequently, perform a preliminary inspection:-Lay the product flat, remove the fabric cover if possible, and visually inspect.-If one-third or more of the surface shows cracks, discontinue use and replace immediately.-Where available, use a professional dosimeter to measure radiation attenuation and determine whether replacement is necessary.Armor-grade 0.5 mm Pb core stops scatter. Mirror-bright silver fabric is waterproof, wipe-clean, and amplifies shielding. Wide Velcro adjusts in seconds; ergonomic cut lets you bend, stride, even sprint without drag. Crafted from premium lead-rubber, the thyroid shield combines long-lasting durability with a soft, flexible feel for all-day comfort An extra-large neck opening slips on and off instantly, accommodating virtually every adult comfortably Radiation protection collar features 0.5 mm Pb core—50 % more lead than standard aprons blocks scatter Collar and apron align precisely, forming a continuous barrier that blocks scatter radiation from every angle Simply wipe with mild soap or a low-strength disinfectant—no soaking, no special solvents—to keep the shield clinic-ready ASIN B0G7WTSXQV Item Weight 12.8 ounces Manufacturer Lumirio Package Dimensions 8.9 x 6.1 x 1 inches