【16mm & 19mm Compatible Cane Strap】 This strap is compatible with 16mm and 19mm canes. It can be easily attached and adjusted without tools. ● Compatible Sizes: 16mm, 19mm ● How to Use: Attach the adapter to your cane. ● With Adjuster: The length of the wrist strap can be adjusted. This is a convenient item that can be used with canes that don't fit other straps. It's new and in good condition, so you can use it right away.