Kodia Full Round tower bolt in SS and Antique finishes, made in 4, 6 and 8 inch lengths for holding doors and windows shut. As the name says, the body is fully round: a cylindrical barrel with a sliding bolt worked by a small round knob that sits in a slot to lock the bolt. The keeper is round too, built from ring-shaped collars with fixing holes, and further ring collars near both ends of the barrel carry the screw holes. Buyers can choose between a satin silver SS finish and a brushed gold-tone Antique finish.