Idea: On first floor install 2 inch door latches on the window frame for security. Works as a window stop and no one can lift windows higher than the latch. Just retract to open the window all the way.
Yale Sash Window Locks in a Pack of 6 At Door furniture direct we sell high quality products at great value including Packet of 6 Yale Sash Window Locks in our Window Security range. We also offer free delivery when you spend over GBP50. http://www.MightGet.com/january-2017-12/yale-sash-window-locks-in-a-pack-of-6.asp
Safety Prograde Window Lock - 2 Pack Rotating stop hangs over window track to prevent it from opening fully Secure Tech TM locking indicator Slide enables disengagement for periods of non-use Sleek design does not detract from window décor
NOS Window Bowtie Cupboard Turn Latch Strike Plate Jelly Cabinet Black Cast Iron. These old turn latches were often used on kitchen cabinets and jelly cupboards. This latch is old and has most of its original black paint.