Will these fit on a round post?

This insulator is designed to be installed on a t-post. Our http://www.amazon.com/Red-Snapr-Yellow-Insulator-IRYRS/dp/B007R2A77A/ref=sr_1_2?ie=UTF8&qid=1454510724&sr=8-2&keywords=IRY-RS is a similar design, but can be used on a round post with a diameter of 1/2 inch or less.

Can you use these with high tensile wire pulled to 250 lbs?

Well you should be able to use these in a straight line. Because the wire would go under the first and over the second hook but they are plastic so hopefully they don't break. I think the tension will just make it a straight shot right through . The insulator will not support 250 lbs of pressure but should not see it. I have more trouble with the deer hitting the wire and breaking insulators

Will poly rope electric fence fit in these insulators?

Greetings, Heather. We do use the poly rope for the insulators pictured. The poly rope should not be excessively large, no larger than a very thin pencil.We use 1/2 ro 3/4 inch poly tape for all our fencing needs--bear fencing needs in north central mi and southern fl. We find that the poly tape is more effective, i.e., carries a higher voltage than the poly rope, etc. Easier to repair, etc.We have about 100 bears fences between our two hubs--MI and FL. The fenced area covers about one acre of land. Again, we do use poly rope occasionally, but have found that the poly tape, with the stainless steel strands are superior for bear deterrient than the poly rope.Hope this is helpful. Best of the fall, Ed

I want to put these on existing fence. the back side of t-post face our field. can we get the wire set up on our side? have permission.

If the t-posts are facing the wrong direction, we recommend purchasing a reverse insulator.

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Zareba Standard T-Post Insulators for Electric Fence, 25-Pack | Snug-Fitting Design for 1-1/4 or 1.33 in Studded T-Posts, No Hardware Required, Yellow Wrap-Around Style, ITY-Z

Product ID: 3605749

Details

Color
Yellow
Contact Material
Plastic
Insulation Material
Polyethylene
Material
Plastic
Terminal
Screw Terminal

⚡Supports up to 120V DC

📦Bulk 25-pack for extended use

🔧Tool-free snap-on installation

S$32

Duties & taxes included

In stock

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Description

⚡ Snap, Secure, and Power Up Your Fence Game!

TRUSTED BY PROS - Top-rated with 4.7 stars from 1,700+ users—join the community powering smarter fencing solutions.
EFFORTLESS SNAP ON FIT - Wraps securely around standard 1.25" or 1.33" studded T-posts—no extra hardware needed.
BRIGHT YELLOW VISIBILITY - High-visibility color ensures quick fence line checks and professional-grade safety.
VALUE PACKED CONVENIENCE - 25 insulators per pack means you’re always ready to maintain or expand your electric fencing.
DURABLE POLYETHYLENE BUILD - Engineered plastic insulators resist weather and wear for long-lasting electric fence performance.

The Zareba Standard T-Post Insulators are precision-molded polyethylene clips designed to fit snugly on standard studded T-posts (1.25" or 1.33"). They support electric fences up to 120 volts DC and install effortlessly without tools or hardware. Sold in a convenient 25-pack, these bright yellow insulators combine durability, visibility, and professional-grade reliability favored by thousands of agricultural and fencing pros.

Specifications

ASIN	B005MNJOA2
Best Sellers Rank	#10,294 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #14 in Agricultural Fencing
Brand Name	Zareba
Color	Yellow
Contact Material	Plastic
Customer Reviews	4.7 4.7 out of 5 stars (1,757)
Global Trade Identification Number	00084644500997, 00085868013171
Included Components	25
Insulation Material Type	Polyethylene
Item Dimensions L x W x H	1.76"L x 9.52"W x 12.15"H
Item Type Name	Snug-Fitting Insulator
Item Weight	1 pounds
Manufacturer	Zareba Systems
Material Type	Plastic
Maximum Voltage	120 volts_of_direct_current
Model	ITY-Z
Number of Items	25
Part Number	ITY-Z
Stud Size	1-1/4 or 1.33
Terminal	Screw Terminal
UPC	085868013171 084644500997
Unit Count	25 Count
Warranty Description	No_warranty

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