Shur-Lock Collar: Outside diameter 18 inch - Neck Size 2.5 to 5.0 inches(medium sized dogs)

New improved plastic collars at a low price - SAVE $5 each. Our collars stay on because they fit better. Save time - no more changing from one size to the next. They are 2-4 times more adjustable. Satisfaction Guaranteed. We guarantee the lowest price. A larger neck opening plus twice as many adjustment openings insure a better fit on a larger variety of breeds.