NELXULAS Security Door Chain 304 Stainless Steel Casting Door Surface-Mounted Lock Brushed Finish (B Style)

Defender Security U 10308 Swing Bar Lock for Hinged Swing-In Doors – Secondary Security Lock for Door and Home Security, 3-7/8” Bar Length, Diecast Zinc Construction with a Satin Nickel Finish

National Hardware N335-984 804 Door Security Guards in Nickel

Dependable Products Heavy Duty 4" Swinging Bar Slide Bolt Entry Security Door Guard,satin Nickel Finish

National Hardware N151-555 V834 Barrel Bolt in Zinc plated

Door Knob Covers - 4 Pack - Child Safety Cover - Child Proof Doors by Jool Baby

AR-House Extra-thick Door Chain Lock-- Sus304 Stainless Steel Casting Door Security Chain Guard, Heavy Duty Latch Lock for Inside Door, Brushed Nickel Finish (Deluxe Extra-Thick:3 mm)

Prime-Line U 9852 Chain Door Guard, 3-5/16 in., Steel Construction, White