Instant purchase OK. No comments needed. Half choke hardware, size S x 2 pieces Size: Chain approx. 145mm Split ring inner diameter approx. 15mm, outer diameter approx. 19.5mm Split ring width 2mm Recommended for small dogs. Ideal for making handmade collars for your dog. Strength tested and verified by a public institution. Although a new, unused item, there may be minor scratches due to the nature of the material. Please understand this before purchasing.