2.5/8" width by 0.75".
eBay
1PC Craft Bracket Book Holder Photo Pedestal Bowl Picture Frame Black Iron Plate Rack Display Stand Easel Home Decoration
Aliexpress UK
Threaded Rod Airer. 1.25" by 0.3/8" wheel.
eBay
1pcs Metal Hexagon Geometric Design Tea Light Votive Candle Holders, Iron Hollow Tea Light Candle Holders for Vintage Wedding Ho
Aliexpress UK
Threaded Rod Airer. 1.75" by 0.3/8" wheel.
eBay
KAK 12pcs 34x28mm Antique Bronze Iron Padlock Hasp Hook Lock For Mini Jewelry Wooden Box With Screws Furniture Hardware
Aliexpress UK
32mm by 10mm wheel.
eBay
Iron Storage Box Retro Industrial Style Metal Miniature Container Model Decorative Storage Box Creative Model Display Piece
Aliexpress UK
Now I've been told this is a wheel for an old wheelbarrow, probably dating from the 1800. So if you have a wheelbarrow with no wheel this is for you. They are also very collectable and people use them in their gardens as decorative features. This one measures 39 cms across.
eBay
2Pcs Candle Holder Iron Taper Candle Stand with Curved Handle Retro Candlestick Holders Decorative for Home Wedding Party
Aliexpress UK
A HEAVY AND ROBUST WHEEL WITH THICK IRON SPOKES. ANTIQUE IRON PULLEY WHEEL FROM FARM MACHINERY. IT HAS LIGHT SURFACE RUST, AND IDEALLY REQUIRES A RUB DOWN AND RE-PAINT.
eBay
2PCS Heavy Duty L-Shaped Shelf Brackets, Iron Right Angle Wall Mounted Supports for Industrial Furniture
Aliexpress UK
Threaded Rod Airer. 1.75" by 0.3/8" wheel.
eBay
Metal Decorative Sign, (20cmx30cm), Iron, Wall Hanging, with "Don't Lick the Wall" Text, for Home Decor, Bedroom
Aliexpress UK
Threaded Rod Airer. 2" by 0.5" wheel.
eBay
1pc Plain Candle Extinguisher, Iron Straight Cover Candle Snuffer For Home Scented Candle Tools
Aliexpress UK