National Hardware V804 Series N199-679 Door Security Guard, 4-1/8 in L, 2-1/2 in W, 0.81 in H, Brass [SKU: ORG7161052]

Designed to provide increased security for wood or metal doors, Guard allows door to be opened slightly for ventilation or viewing while resisting possible forced entry, Cannot be unlocked from the outside, unlocks easily from the inside. [QTY/UOM: 1CD / 1CD]