Kung Fu Dog Pet Princess Mesh Porous Sun Cap Hat with Ear Holes Only for Small Dogs Light and porous,breathable and comfortable. Adjustable non-elastic Strap One Size fits Most Small Dogs Visor design, handsome and protect your baby from sun One size:Ear distance:2.4''/6cm; Ear diameter:1.5''/4cm; Head girth:9.8''/25cm; Max Neck strap Length:8.7''/22cm