Need 25,000 collars per year The best shock dog collars should follow these guides (# 1 is most important) 1. Low Price 2. Leather Collar 3. Leather Collar with key lock mechanism 4. Nylon Choke Collar ( D-Rings - No Buckle) 5. Locking Collar using either a hollow tongue (that a miniscule padlock can pass through) or a locking hasp with diary sized key. 6. Chain Choke Collars made from bronze, copper,lead alloys and aluminum alloys. ( Cheaper than steel) 7. Chain Collars (Chooke collars made from non-hardened steel. Please include the over all pricing structure and the Price for samples, fob DALLAS, TEXAS (You may estimate the shipping costs) Contact COACH ((email g_f_sweetman)) use Yahoo for preliminary contact information Show More