80mmx80mm Ball Top Cap 201 Stainless Steel Silver Tone for Stair Newel. Made of 201 stainless steel material. Material: 201 Stainless Steel. Add variety to your staircase.
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Baby Safety Gate No Drill Installation, Child Security Barrier for Stairs and Doorways, Indoor Pressure Mount Pet Gate and Fence
Aliexpress UK
Set of 13 Premium Range Antique Pewter Stair Rods With Ball Finial 1/2" x 28.5". Each complete stair rod contains two finials, two fixing brackets, one rod and all the matching fixings required to fit the stair rod.
eBay
Baby Gate for Stairs Retractable Pet Safety Barrier 49 Inch Wide Childproof No Drilling Gate for Kitten Puppy House Yard Garage
Aliexpress UK
Set of 13 Premium Range Wrought Iron Stair Rods With Ball Finial 1/2" x 36". Each complete stair rod contains two finials, two fixing brackets, one rod and all the matching fixings required to fit the stair rod.
eBay
Indoor Puppy Gate Retractable Safety Pets cat Gate Portable Pet Supplies Multifunctional Animal Fence for Doorway Stairs Balcony
Aliexpress UK
80mmx80mm Ball Top Cap 201 Stainless Steel Silver Tone for Stair Newel. Made of 201 stainless steel material. Material: 201 Stainless Steel. Faites de matériaux en acier inoxydable 201.
eBay
Mesh Baby Gate Retractable Pet Gates for Dogs Stair Door Partition Childproof Net Cat Baffle No-Drill for Deck Kitchen Porch
Aliexpress UK
Description: Made of 201 stainless steel material. It is ,anti-rust and can be used for decoration for long time. Add variety to your staircase.
eBay
Retractable Pet Barrier Fences Folding Anti-Escape Pet Safety Gate with Hooks Mesh Fence Dog Isolation Gate Stairs for Doors
Aliexpress UK
Plug it or drill it out to suit.
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Baby Pet Safety Door Stair Gates Wall Mount Cups Bumpers Guard Protectors Safety Gates Bumpers Drill-Free Mounting
Aliexpress UK
Length of Rod Inc. Finial: 1 066.8mm (42”). Whether you're planning to treat yourself to a new garden bench or redecorate your kitchen, we've got lots of lovely things to choose from. Length of Rod Only: 1016mm (40”).
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Zipper Mesh Dog Gate Safety Baby Fence Adjustable 3 Sizes Portable Folding Pet Gate For Stairs And Doors
Aliexpress UK
Very common dimension HT 13cm diameter 8.5cm Diameter Base 5.6cm  screws Note a lack of material see photos So that you can buy with greater confidence from us, look at our activity by typing: Frederic Marceau Antiquites on Google.
eBay
Portable Retractable Pet Dog Gate Protection Adjustable Fence Baby Barrier Stair Gate for Patio Lawn Garden Stairways Doorway
Aliexpress UK