Adiustable security bar. Adjust the brace quickly and easily to your desired length. To ensure that the door brace doesn't ruin your flooring or the paintwork on your door or floor, it has a non-marking yoke at its head, which is designed to sit under the doorknob of a standard door and can be removed when you need to secure a sliding door, as well as a padded foot.
eBay
Heavy Duty Door Hinges 4 Inch (100mm), Heavy Duty Ball Bearing Hinges Stainless Steel Door Hinge for Wooden Doors Silver
Aliexpress UK
Adjustable Sliding Patio Door Security Bar: Sliding door security bar is made of electroplating iron, smooth and wear-resistant. ValueMax Bike Lock - 16mm High Security Bike U Lock 1.8m(6FT) RRP £24.
eBay
1Set Cabinet Closet Door Ball Catch Adjustable Door Latch Set Spring Roller Ball Door Stopper with Screws Furniture Hardware
Aliexpress UK
This allows you to quickly strengthen your defense.
eBay
25 Pcs/Set Door Handle Screws - Through Fixing Bolts for Door Handle Roses, Knobs & Door Lock Metal Hardware
Aliexpress UK
Adiustable security bar. Adjust the brace quickly and easily to your desired length. To ensure that the door brace doesn't ruin your flooring or the paintwork on your door or floor, it has a non-marking yoke at its head, which is designed to sit under the doorknob of a standard door and can be removed when you need to secure a sliding door, as well as a padded foot.
eBay
New 3 In 1 Automatic Self Closing Door Hinges with Positioning 90 Degrees Integrates Spring Hinge, Door Closer and Door Stopper
Aliexpress UK
SOLD AS A PAIR WITH BOLTS. MANUFACTURED USING 40 mm x 5 mm STEEL BAR.
eBay
Handles Door Stopper Silicone Gel Door Stop Transparent Wall Protection Door Knob Bumper Furniture Protector Pad Handle Buffer
Aliexpress UK
Fixed Width Security Door Bar. Available in 750mm, 800mm and 1000mm Fixed widths of 60mm x 30 mm tube.
eBay
2PC Door Pulley Screen Window Pulley Stainless Steel Sash Pulley Sliding Door Roller For Cabinet Door CarbonSteel Bearing Pulley
Aliexpress UK
Non-slip rubber base for better grip on the floor. Simply place it in position and adjust the length for a secure fit. 1 × Adjustable Door Handle Security Bar. Strong, durable construction for added peace of mind.
eBay
304 Stainless Steel Door Stopper,Magnetic Door Stop,Door Catch,Nail-free Screws for Stronger Mount,Furniture Hardware
Aliexpress UK
The eSynic Door Security Bar is a professional-grade home security solution made from durable alloy steel. This telescopic door brace is adjustable in 3 stages to provide a secure fit under the door. The sleek black design and modern style make it a stylish and practical addition to any home. With easy-to-follow instructions included, this door security bar from eSynic is a reliable choice for enhancing your home's security.
eBay
Handles Door Stopper Silicone Gel Door Stop Transparent Wall Protection Door Knob Bumper Furniture Protector Pad Handle Buffer
Aliexpress UK