The basics Titanic FX Click-Lock Brush / Tool Protector Case features their patented click-lock closure and ratchet-length expanding adjustment.  The benefits A simple twist releases the lock and incremental notches allow the case to re-lock at any height up to 8" to securely store your gear.  The uses Safely store your makeup brushes, hairbrushes, sculpting tools /sharps or just about anything in your kit. The bottom line Excellent for stacking and storage. Diameter: 3.5", Length: 5" - 8".