Dogs Kingdom cute rose flower dog pet collar and leash 2pcs set Collar XS11.8" x 0.59"(30*1.5 cm),Overall length 12", will fit 8"-10"(20-26cm) neck Collar S14.56" x 0.59"(37*1.5cm),Overall length 14.5", will fit 10"-13"(27-33cm) neck Collar M16.53" x 0.78"(42*2.0 cm),Overall length 16.5", will fit 12"-15"(29-38cm) neck Collar L20.07" x 0.98"(51*2.5 cm),Overall length 20", will fit 14"-18" (36-46cm)neck Leash size :120*1.3cm total length