A couple of quick flicks with a tumb or finger and them twist up or down. What they are good for are many things around the house and yard. They are great for connecting two sections of rope together and perfect for keeping things off the floor of a tent.

• The locking round tube does twist easily up and down and does lock them from opening when closed
• They are very light in construction of aluminum alloy and they are a nice bright color
• These do not shift from side to side, meaning the part that pivots to open it does not move left or right causing it to not open correctly
• These are pretty solidly made and should last quite well
• You can open and close these with one hand, how easy the lock is on them

The locking round tube does twist easily up and down and does lock them from opening when closedBanwen