Contoured, low profile design for a precision fit with less occlusal interference. Single–piece with patented laser-etched base for optimal bond strength and reliability. Scribe line to help with bracket placement and finishing.Flared mesial slot opening designed for easy wire changes. Bendable "J" hook designed for elastic retention. Scaler notch along the M–D length. Purchase point to assist holding with tweezers or bracket holders. "T" hook on lower first molar for elastic retention.