Stabila 37432 Spirit Heavy Duty 32" Box Frame Levels Stabila 37432 Spirit Heavy Duty 32" Box Frame Levels Features:; Crystal Clear vials readable in any direction with no change in accuracy tolerance, guaranteed for life; Spring steel hairline indicators in vials; Best frame strength-to-weight ratio; Removable end caps for scribing in corners and for reading tight header and openings; Rubber end caps grip walls for storing level on site; Large comfortable rubber hand holes; Fast and accurate installations; 32"