Supet Durable Dog Prong Collar Stainless Steel Dog Adjustable Pet Training Collar For Medium Large Dogs Just Pull The Training Dog Collar And The Dog Will Stop Pulling Immediately Perfect For Dogs And The Most Effective For Training Also, This Collar Become An Excellent Accessory For Your Pet Material - Stainless Steel With Chrome Coating For Longer Usage Period These Items Are Made Via A Special Technology For Being Able To Use This For One Year Or More The Period Of Use For The Dog Training Collars From Beloved Pets Is Much Longer To Similar Goods From Other Manufacturers Beloved Pets Offers Training Dog Collars For Large (Like German Shepherd) And Small Dogs In Different Sizes So That You Can Choose The Most Fitting Size Of Training Collar Prong For Your Dog Size: S - Length 45 Cm (1771 Inches) And Diameter 25 Mm (010 Inches) M - Length 50 Cm (1969 Inches) And Diameter 30 Mm (012 Inches) L - Length 55 Cm (2165 Inches) And Diameter 35 Mm (014 Inches) Xl- Length 60 Cm (2362 Inches) And Diameter 40 Mm (016 Inches) Beloved Pets Training Dog Collars For Small, Medium And Large Dogs Are Very Easy To Use, It Can Be Easily And Quickly Put On Or Removed From The Dog