Is the large size prong collar ok for a 3 month old catahoula puppy?

It should be fine, even a bit too long but you can add or take off pieces to fit properly.

what size neck does the large collar fit ?

My dog's neck is 16 inches and I had to remove one notch from the large 21" Star Mark Pro-Training Dog Collar. I prefer this collar than the one I replaced which was the steel collar which is not as comfortable as this hard plastic collar.

would this work on large dogs like pitbull?

As long as it's within the neck measurements (depends on how big your baby is at the time) then yes. As long as the correct is is purchased then it should work. I used it on a boxer. When they pull the pieces act like "teeth" so they grib and causing pinching. Once the pinching took effect my dog always eased up on the pulling. It's a great tool for training purposes.

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Star Mark Pro-Training Dog Collar, Large - 21"

Product ID: 4162016

Details

Brand
StarMark
Closure Type
Pull On Snap
Color
Black Silver
Material
polymer
Pattern
Star

🐕Gentle control for large breeds

🔗Modular watchband-style links

⏱️21-inch adjustable length

216 K

Duties & taxes included

In stock

Sold byAmazon Papua New GuineaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🐾 Train smart, look sharp — the collar that means business.

BUILT FOR BIG DOGS - Durable polymer construction designed specifically for large breeds, ensuring strength and comfort.
PULL RESISTANT POWER - Engineered to gently control even the most persistent pullers without discomfort.
SLEEK WATCHBAND STYLE - Unique link pattern combines function with a modern, stylish look your dog will rock.
CUSTOM FIT EVERY TIME - Easily add or remove links to tailor the collar perfectly to your dog’s neck.
EFFORTLESS OBEDIENCE MASTERY - Patented design boosts dog-owner communication for faster training wins.

The Star Mark Pro-Training Dog Collar (Large, 21") features a patented modular watchband design that enhances communication and control during training. Crafted from durable polymer, it offers gentle yet effective leash control for large breeds. Its adjustable links allow a custom fit, combining style and function to make obedience training easier and more stylish.

Specifications

ASIN	B002DVTHJY
ASIN	B002DVTHJY
Age Range Description	All Ages
Best Sellers Rank	#54,827 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,161 in Basic Dog Collars
Brand Name	StarMark
Breed Recommendation	Large breeds
Closure Type	Pull On, Snap
Color	Black, Silver
Customer Reviews	4.5 4.5 out of 5 stars (969)
Date First Available	May 15, 2009
Dog Breed Size	Large
Included Components	Starmark Collar\|Starmark Pro-Training Collar Large
Is Discontinued By Manufacturer	No
Item Dimensions L x W	10.02"L x 4"W
Item Length	21 Inches
Item Type Name	Star Mark Pro-Training Dog Collar, Large - 21"
Item Weight	0.31 Pounds
Item model number	TCLC
Manufacturer	Triple Crown
Manufacturer	Triple Crown
Manufacturer Part Number	TCLC
Material Type	polymer
Model Number	TCLC
Number of Items	1
Pattern	Star
Pet Type	Dog
Product Dimensions	10 x 5 x 1.5 inches; 4.96 ounces
Size	Large
Target Species	Dog
Unit Count	1 Count

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