This is a set of 3 ball markers featuring a popular paw print illustration. Diameter: 22mm, Thickness: Approximately 3mm Suitable for ground golf, adhering to the size recommended by the association. This type can be attached to a magnet for portability. Magnets are not built-in, so please use a clip or base with a magnet. They sparkle beautifully in the sunlight, making them easy to find, and are perfect for various types of golf. These are handmade by me using resin. The inside (base) is steel, and the back is finished with stainless steel foil. How about a small gift for family or friends who play golf? I also have other handmade markers with different designs on sale, so please take a look. These are handmade by an amateur, so they are not as perfect as machine-made products, but please understand.