1. Ikuku jụrụ reflective imewe U adụ akpụkpọ enyi na enyi magnetik adsorption imewe
2.Sanwichi ntupu ákwà ntụsara ahụ ume iku ume aka aka mberede ahụ imewe magnet button nanị patent imewe
3.The ngwa-ntọhapụ mkpọchi na-eme ka ọ dịkwuo mfe iyi D-ụdị traction buckles na ihe karịrị otu traction ụdị reflective warara e mere maka nchekwa njem na elu na-egosipụta ìhè n'abalị.