SIGNAL TOOTHBRUSH EXTRA CLEAN SPECIALLY DESIGNED FOR EFFECTIVE CLEANING. Criss-cross bristles - clinically tested to effectively remove up to 99% food debris and stains between teeth. The innovative tongue cleaner removes bacteria and helps freshen breath. The triangular handle design allows the brush to reach the back teeth. Tips for use: brush your teeth twice a day, replace your toothbrush every 3 months, and visit the dentist at least twice a year. Manufactured for: Unilever Asia Pte Ltd Singapore.