The following 15 safety tests have been certified. 1. No detection of allergic dyes 2.ph measurement test 3.ub UV protection test 4. Heavy Metal Test (mb) 5. Hazardous substance test (mb) 6.Phthalate test (bm) 7. Heavy metal test (surface) 8. Hazardous substance test (surface) 9. Skin irritation test 10.RoHS Certification 11.phthalates 불검출 12. No detection of fluorescent material (purity) 13. Non-detection of formaldehyde 14.Ground test (surface) 15.Strength test (surface)