6Pcs/Box Highlighter Pen Set Kawaii Kuromi Melody Cinnamoroll Art Fluorescent Markers Pens School Stationery For Kids

Warning : Do Not Approach Fire Sources Gender : Unisex Theme : Movie Tv Material : Plastic By Animation Source : Japan Item Type : Gift Bag / Password Security Mfg Series Number : Study Stationery Origin : China Recommend Age : 18+,14+Y

Product: Highlighters Markers Color: 6 Colors/Set Pen Tip Shape: Oblique Material: Plastic+Fiber Pen Tip Pen Length:12Cm

We always take a rigorous full chain quality control system as the core. Before each product is delivered to the user, it undergoes multi-dimensional and full process rigorous testing and layer by layer verification to ensure that the performance and quality of the entire process meet the dual standards. Starting from the source control, all raw materials must pass inspection, and core indicators such as appearance accuracy, electrical performance, environmental compliance, and material strength must be verified item by item After the finished product is taken offline, it will enter the stage of comprehensive performance testing and reliability verification. We simulate various extreme usage scenarios, complete functional accuracy calibration, rated load operation, high and low temperature cycling, humidity tolerance, vibration impact, comprehensively verify the stability and durability of the product, and ensure that all indicators meet the standards Final re inspection, completing a comprehensive verification of appearance, function, and packaging. All test items that meet the standards and release criteria for products, we fulfill our quality commitment to our customers with every rigorous test and every rigorous verification, delivering stable, reliable, reassuring, and durable high-quality products