Basic set of stainless steel spurs with a rounded knob end of the shank and varying shank sizes depending on your specific need - these are a mild spur option. These spurs come with the nylon spur straps.
Children's, Ladies and Men's Spurs vary from each other in the width of the spur arms (the part that fits around the boot). We recommend if you're an adult lady with very small feet to select Children's sizes. If you have very large feet then go for Men's sizes.
The mm meaurement is the length of the shank.