Classic Single Column Tie From BDSM Wiki Revision as of 20:41, 19 September 2014 by Admin (Talk | contribs) (diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Jump to: navigation, search A classic single column tie is used to bind a single column such as an arm or leg. Variations include the boola boola, sommerville bowline and many others. Single Collumn Tie Category: Bondage