SMARZ PET Durable Adjustable Extra Thick Dog Collars -REACH Material -Medium Size Supreme Quality: REACH Highest Environmental Standard, Soft And Comfortable Touching Feeling. Providing Most Care For Dog's Skin And Health Extra Comfortable And Durability: Highest Environmental Standard material ensure Its Comfort While Dog Wearing The Collar,And Nylon Fabric With High Density Webbing To Add Durability Fashion Design And Pleasure: Every SMARZ PET Product Has Fully Displayed Our Endeavor For The Most Fashion Idea,We Believe That Going For A Run Or Walk With Your Dog SMARZ PET Leash Is One Of Life's Greatest Pleasures.For The Best Combination, Purchases Of The Matched Collar Products In The Same Size Are Highly Recommended Most Suitable Size:After Months Of Investigation, We Found Out Size(3/4" Wide *4 Feet Long) Is The Most Suitable Leash Size For Walking Dogs. SMARZ PET Is Devoted To Being Your Best Partner In Dog Care Products Our Service: We provide perfect pre-sales and aftter-sales service, please feel free to contact us for any question