Trolley Coin keyrings - a popular alternative to a coin, use in any returnable vending device or supermarket trolley. Trolley coin keyrings are supplied with standard C-22 keychain. We also provide Variety of High quality coin key holders that can fit £1 and €1 size coin. Available in wishbone style, round or oval style. Coin sizes reference: Euro coin : 25.7 x 2.2mm / 25.75 x 2.2mm UK coin : 22.3 x 3.0mm Sweden : 20.5 x 3.0mm / 28.5 x 2.0mm Belgium : 25.6x 2.0mm Swiss : 27.2 x 2.0mm / 23.2 x 1.5mm Norway : 24.0 x 2.0mm Damark : 23.3 x 2.0mm Germany : 23.0 x 1.5mm Material : Iron/ Zinc alloy /Printing Finish : Without /Soft Enamel