🔐 Lock it down, breathe easy! Adjustable jaw accommodates vinyl frame thicknesses from 1/16 to 1/2 inch. Crafted from diecast material for long-lasting performance and reliability. No tools required for a quick and hassle-free setup. Keep your home safe with a vise-like grip that locks windows securely. Lock windows in a ventilating position for fresh air without compromising safety. Diecast Durability Secure Locking Adjustable Jaw The Prime-Line U 9809 Sliding Window Lock is designed specifically for vinyl windows, featuring an adjustable jaw that fits various frame thicknesses. With a durable diecast construction and easy installation, this lock provides enhanced security while allowing for ventilation. Each pack includes two locks, ensuring your home remains safe and breezy.