WINSOON Dog Australia Boots Pet Antiskid Shoes Winter Warm Skidproof Sneakers Paw Protectors 4-pcs Set Size1# External Dimension: L = 1.77(in), W = 1.37(in) H =2.55(in) Insole Dimension: Length 1.26(in), Width 1.02(in) Size2# External Dimension: L = 1.96(in), W = 1.57(in) H =2.75(in) Insole Dimension: Length 1.61(in), Width 1.30(in) Size3# External Dimension: L = 2.16(in), W = 1.77(in) H =2.95(in) Insole Dimension: Length 1.77(in), Width 1.38(in) Size4# External Dimension: L = 2.36(in), W = 1.96(in) H =3.14(in) Insole Dimension: Length 1.89(in), Width 1.65(in) Size5# External Dimension: L = 2.55(in), W = 2.16(in) H =3.74(in) Insole Dimension: Length 2.09(in), Width 1.85(in)