Straptight Guitar Lock
Sometimes simple is all it takes. Never worry about your guitar strap letting you down again. Straptight strap locks are made in the US of flexible plastic, and fit a wide variety of strap posts and straps with no tools or hardware required. Just place the open end of Straptight on the strap post, give a slight twist, and push in. Your strap is now locked onto your strap post and will never slip off again. Removing Straptight is just a quick twist and pull. Never worry about your guitar strap letting you down again.
MSRP: $7 for a four-pack