Country Brook Petz Martingale With Deluxe Buckle Nylon Dog Collars Are A Great Solution For Your Pups Pulling This Martingale Collar Features A Deluxe Side Release Buckle, Which Provides Easy Access For Quick Release And Adjustability These Collars Are Made To Prevent Your Dog From Slipping Out Of Its Collar While Being Walked On A Leash And Can Also Be Used As A Training Collar The Martingale Collar Is Often Referred To As A Humane Choke Collar They Feature A Twin Loop Design That Works By Tightening Around Your Dogs Neck Whenever It Tries To Remove Its Head From The Collar Then, The Martingale Will Loosen Again When Your Dog Stops Struggling Against It The Limited Closure Of The Martingale Collar Prevents It From Becoming Too Tight Constructed Using 100% Nylon Webbing, Our Collars Are Ribbed, Soft, And Sleek To The Touch They Also Sport A Bit Of Sheen We At Country Brook Petz Pride Ourselves On Only Using The Best Hardware And You Can Rest Assured That These Collars Will Withstand Whatever Your Pup Brings Its Way All Of Our Collars Are Handcrafted After The Sale Please Note That We Will Ship Within Two Business Days Of Receiving Payment And Size If You Have Sizing Questions, Please Give Us A Call Prior To Ordering We Want Doggos To Be Able To Show The World Their New Collar Immediately, So Be Sure To Measure For The Right Size You Can Check This Out By Using A String Or Tape Measure To See Where The Collar Will Fit Snugly And Comfortably On Your Dogs Neck