Ama-bollard e-TPU ahlukanisiwe aguquguqukayo anamandla amakhulu futhi abuyela ngokushesha ngemuva kokushayiswa. Ifilimu ekhanyayo kakhulu iqinisekisa ukubonakala, ukumelana ne-UV. Idizayini ehlukanisiwe ivumela ukushintshwa kwengxenye, ukufakwa okulula.