Adjustable LED Dog Collar Glowing Anti-lost Night Safety Pet Luminous Collar Flashing Necklace for Small Medium Large Dogs Cat Adjustable LED Dog Collar Glowing Anti-lost Night Safety Pet Luminous Collar Flashing Necklace for Small Medium Large Dogs Cat Life-grade waterproof Partially cleanable detachable electronics for use in dark environments or during night walks Exquisite workmanship, multiple light modes, enhances your pet's visibility LED flashing ring, shockproof, adjustable length Available colors: red, yellow, green, blue, pink Blinking modes: steady on, slow flash, fast flash (controlled by switch) Battery: 2PCS button battery (not included) XS: suitable for neck circumference 28-38cm, width 2.0cm, full length 41cm S: suitable for neck circumference 34-41cm, width 2.5cm, full length 44cm M: suitable for neck circumference 37-46cm, width 2.5cm, full length 50cm L: suitable for neck circumference 41-52cm, width 2.5cm, full length 56cm XL: suitable for neck circumference 42-56cm, width 2.5cm, full length 60cm Specifications: Durable, resistant, adjustable High-quality nylon material with secure clasp Ideal for use in dark environments or nighttime walks Luminous surface provides enhanced visibility Features ultra-bright LED lighting for added safety Stylish and functional design Package Included: 1 x Collar