Our extremely tough, handmade collars are Australian made and owned in Queensland. Please choose your size carefully - sizes are a guide, due to the handmade nature some variations may occur. XS 26cm-36cm (16mm wide) Small 30cm-40cm (16mm wide) Medium 36cm-46cm (25mm wide) Large 44cm-54cm (25mm wide) XL 51cm-62cm (25mm wide) Thin lead (16mm wide) Thick lead (25mm or 1 inch wide)