Heavy Duty Professional Quality Prong Training Collars Large size collar-20" inches Will fit dogs with 18-19 inch necks Links are 3.25mm thick Prong Collars feature rounded edges and removable rubber tips for a comfortable and effective training. Prong Collars are made of steel and are chrome-plated for durability and feature smooth rounded edges and removable rubber tips on prongs to prevent injury. These great training aids provide a heavy-duty yet safe alternative to standard choke chains. Ruggedly constructed of electronically welded steel for added strength. Guaranteed not to rust, tarnish or break! Collars can be made smaller by removing links or larger by adding links (sold in 3 6 packs separately). Extra links are sold separately and can be easily added to collars to customize the length. I also sell the replacement tips for collars-see my other listings or links below. SIZING INSTRUCTIONS For prong collars, measure around the dog?s neck and add 1" ? 2". Prong collars should fit snug and high on dog?s neck. Links can be added or removed to adjust fit. Collars can be made smaller by removing links or larger by adding links (sold in 3 6 packs separately) *Note: I do sell the extra links and replacement tips for prong collars-see my other listings Used by Trainers, Breeders and Handlers Only available through independent retailers Brand New! I sell all kinds of Top Quality Grooming products and Pet Supplies from top brands such as Oster, Andis, Laube, Wahl, Mars, Aesculap, Master Grooming Tools, Paw Brothers, Coastal, Millers Forge, Resco, Top Performance, Master Equipment, ProSelect, Guardian Gear, Aria, Intellipet, Total Pet Health, Clean Go Pet, Slumber Pet, Casual Canine, Geib, etc. and all kinds of Bandanas (Hav-A-Hank, etc.), Fitted Bandanas (Hav-a-danna, Amazing Danna Doo rags or Skull caps), USA Made Flags, similar items and a whole lot more in my Store...We are always adding new products so be sure to check it out! Visit my store: D D Pet Grooming Supplies+Bandanas Be sure to add me to your favorites list! RETURNS/REFUNDS/EXCHANGES All returns are accepted. We try to accurately and honestly describe all our products and handle returns in a fair and reasonable manner. All items, unless otherwise stated, are new with manufacturer?s warranty (if any warranty-this will be stated in item description). RETURNS: Most items can now be returned via?s automated return system which will provide a return label and other info. (Under your purchases there will be a link next to the item purchased for returns). Please be sure to select correct reason for return e.g. just didn't like it, does not fit, found better price, changed my mind, item defective, etc. EXCHANGES: Exchanges are easiest quickest to process by doing return through automated system for item you don't want and then just buying item you want. Once I receive return I will process refund. If you find item to be or damaged on arrival, please notify me via email prior to opening return and I will try to correct issue or problem. Items must be returned in same condition they were sent to you in-new, clean condition in original packaging with all original parts, tags, papers, boxes, etc. If item is not returned in new condition or with all original paperwork/boxes, etc. a restocking fee may be charged, or you may only receive a partial refund. After return period please refer to manufacturer?s warranty (if any). COMBINED SHIPPING Yes, I do offer a combined shipping discount on most items I sell. All items must be paid for on one invoice to qualify for shipping discount. Please purchase items you want but do not pay until I have sent you a combined invoice with shipping discount applied. If in question, please message me before making payment. *International Buyers ? Please Note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying. Also, you may experience delivery delays or experience longer shipping times due to customs-related delays. I buy in large wholesale quantities / lots at a major discount and pass on the savings to my customers. Yes, I do also sell almost everything I sell in WHOLESALE QUANTITIES at WHOLESALE PRICES...Email me for quote if interested! If Any Questions, Please Ask Before Buying or Bidding Thank You for Looking!