Pet Wear comfort
Good range of motion that allows your pets to walk around with ease Adjustable length for you to change how far you want your dog to go Loosely measure the neck where the collar would normally sit sliding two fingers between the dog's neck and measuring tape. Measure the widest part of your dog's head. Order a collar that will fall within the range of these measurements. Instructions:
If It Barks collars are machine washable. We suggest placing the collar in a pillowcase or lingerie bag to protect metal hardware. Line dry. Material: /b>high-impact plastic 
Measure: 2.0INx 1.3IN x 0.7IN' (L x W x T) 
Color: Red,blue, green, Orange.
Pet Dog Puppy LED Bone Will Make your Pet seen! 
Be Safer at Night: Light up those darker areas so you can see better, see your dog better, and let others can see you as well. 
Easy to use:Just attach to your dog's collar, harness, leash, dog tags .
Suit for all sizes& types of pet.

• Collar size:M: width 0.98in;Expansion range 15.6-18.7in
• Made from soft yet durable polypropylene - does not absorb water and is mildew resistant
• Bright LED light visible up to 1/2 mile away
• Cute bone shaped design with a keychain, enjoyed by dogs.
• Best way to keep your dog safe is let them be visible to you and others. 

Collar size:M: width 0.98in;Expansion range 15.6-18.7inMoon-River