4pcs/8pcs/12pcs Sash Blocker Window Jammer – White Zinc Cast Alloy – Extra Security Locks for UPVC/PVC Door/Window Restrictor Lock (12)


  • 4/8/12PCS Sash Jammer Coming with Fixing Screws and Knock on Cover Caps, Ideal Solution for Home Security
  • Sash Blockers are designed to provide additional security for your uPVC doors and windows. They are easy to fit and easy to operate too- just a twist of the Jammer Arm will lock or release the sash.
  • Strong Zinc Cast Alloy Construction, Durability and Quality Guaranteed
  • Easy to use- just 5 minutes! Easy to use- just flick on and off! Versatile- can be used on numerous windows& doors.
  • White Powder Coated Finish, a Good Match with Your Windows and Doors
  • International Express shipping available
  • 30 day easy returns
Guaranteed Safe Checkout


Provide additional security for your uPVC doors and windows. Recommended by insurance companies. Package: 4/8/12pcs UPVC Door / Window Restrictor Lock

Additional information

Weight 0.68 kg



23.6 x 17.7 x 4.7 cm; 660 Grams