The Warwick S-Security Locks Black is a strap pin system, in black. Available in a variety of colours, this security lock set contains two top locks and two end pins.
The main features of the Warwick S-Security Locks Black include:
I have bought them several months ago and installed them on my Shecter Omen-6. From the first look these locks are great, but after few weeks of use one started to unscrew. I have applied some glue on screw and now everything is OK. I would give them 4/5 mark.
If you care about your bass/guitar, YOU NEED THIS. I installed this on both - my guitar and bass. And they never fell on the ground. It's a must have if you walk, jump or even run around while you're playing. And it's waaay better than dunlop strap locks!
It took mi quite a while to install it. Scrues from my new Ibanez RG were a bit wider, so they didnt fit in to the holes and original Warwick scrues were too small to hold in guitar. Just be carefull if its compatible with your guitar, otherwise you spend quite some time in workshop.
Schaller S-Locks (Chrome)
Warwick S-Security Locks chrome 
Warwick S-Security Locks nickel