Dog Leash S=M=L=XL=XXL=150cm=59inch

S:Suitable for pet within 12.5kgs(27.6lb) 

M:Suitable for pet  between 12.5kgs(27.6lb) to 20kg(44lb)

L:Suitable for pet between 20kg(44lb) to 35kg(77lb)

XL:Suitable for pet between 35kg(77lb) to 60kg(132lb)