The ideal 360? line laser for indoor useSelf-levelling pendulum system ? locks during transportBM 3 mount with ratchet clip for ceilings enables multiple tool applicationsClearly visible 360? laser lines, ideal for indoor useFEATURES:Levelling accuracy ? 4 mm/10mLaser scheme packaging? ? Precision use due to vertical laser line and horizontal 360? laser lineHorizontal working range ? Working range ? 20 mLaser scheme packaging ? Incline function of the horizontal 360? laser line