Tubular Body Floor Safe or Rectangular body. The AMSEC C Series Round Door Floor Safes is the most difficult floor safe to break into ever made. Star Tube Floor Safes are engineered with advanced security features. STAR Tube safes have been the standard for gas stations, fast food, small retail establishments and home owners for over 50 years. Low cost, combined with the various body styles and optional doors will fit almost any cash handling system. When properly installed in concrete, STAR Floor safes provide maximum fire and burglary protection. Now, with the water resistant dust cover, you get protection from water as well.