10 Retail Cards of 300 Heritage Black Display Pins Size 26mm x 0.85mm Whitecroft Heritage Premium is a range of quality products for the discerning user. Black straight pins are often coated with a black finish for practical reasons. The coating provides several benefits: Visibility: Black pins contrast well against light-colored fabrics, making them easier to see during sewing or pinning tasks. Rust Prevention: The black coating helps protect the metal from rust and corrosion, ensuring the pins remain usable over time. Aesthetics: Some crafters and sewists prefer black pins because they look sleek and professional for display.