Product Name: Pet helmet and Sunglasses Style: Fashion Helmet Material: PC + frame cotton + polyester Glasses material: PC Helmet size: S size (diameter 10cm), M size (diameter 12.5cm) Glasses Hasp Adjustable Size: Head circumference: (20-32 adjustable range) Jaw: (17-24 adjustable range) Color: As shown Helmet weight: S size 49g / M size 68g Glasses weight: 25g Applicable: medium dogs, small dogs, cats Packing method: Box Helmet Feature: 1. Top design: Ventilation vents allow internal air circulation to prevent moisture generation. 2. Adjustment design: Use nylon straps and safety snap, simple adjustment, master wear. Safe and handsome. 3. Top design: head pads are arranged on top of helmets and pets do not feel uncomfortable wearing them.