Max6mum securitys child window restrictor has been specially designed to help prevent accidents and injurys around windows in homes office blocks hospitals and schools the lock is designed to keep the window whether it be made from upvc wood aluminum or other metals from opening to far preventing your child or toddler from falling from or dropping large items from the window the max6mum security lock uses a 200mm twisted steel cable protected by a soft white plastic case that can resist a