The best way to make sure that you always have these popular CRL Sliding Window and Door Nite-Lock Pins in stock is to buy them in bulk. The bulk package contains 25 nite-lock pins and saves you money on the per unit cost. It has a plated, case hardened, steel pin which locks into a retaining ring when engaged. It securely locks either a window or patio door in a closed or ventilating position and prevents the sliding or lifting of the door. When unlocked, the pin stores in its holder. 25 Pins with chain, retaining caps, holders, and installation screws per package.