What is the circumference of the handles?

Hello John, Thank you for your question. The diameter is about 1.38in, which brings the circumference to roughly 4.3in. Please feel free to call us directly at 925-350 -4111 should you have any other questions. With best regards, Your WorldFit Team

Can you do leg exercises barefoot or will the strap be too uncomfortable?

I personally like to use sneakers, but I use sneakers that I don't wear outdoors, or I clean the soles of my sneakers so that I don't mess up or dirty and degrade the straps while using them. The better you take care of your equipment the longer it lasts. Using bare feet could get a little uncomfortable.

How exactly do you workout your chest with this? Also, is there any way to actually measure your progress?

You can train the chest by shortening it up and positioning it across the back to perform a forward press. This device doesn't really provide a way to measure progress. It is a relatively cheap and portable isometric exercise device. It's best use is for travel or a quick workout when pressed for time. Probably not well suited to a stand alone routine.

Will this work witha Bullworker Classic?

Hello Peter Shmidt, Thanks for your inquiry. No, the WorldFit ISO Trainer is a stand-alone training device. With best regards, Your WorldFit Team

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WorldFit ISO Trainer - Isometric Exercise for Strength Training, Stretching, Yoga, Pilates - a USA Company

Product ID: 105514976

Details

Brand
WorldFit
Color
Black
Material
Silicone
Number of Packs
1
Style
Pull Up

🎒Ultra-light 1.8 lbs, portable anywhere

💪Boosts strength & flexibility fast

🇺🇸Made in USA with military-grade webbing

VT20722

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Elevate your strength game with USA-made precision 💪

BUILT TO ENDURE - Crafted with US Military 1st Grade webbing and durable silicone grips for unmatched longevity.
CONFIDENCE GUARANTEED - Backed by a 100% hassle-free return policy from a trusted USA company.
STRENGTH MEETS SAFETY - Isometric training that’s gentle on joints but powerful on muscle toning and endurance.
VERSATILE WELLNESS TOOL - Ideal for strength training, stretching, yoga, and Pilates—tailored for all fitness levels from 5 to 105+.
ANYWHERE ANYTIME FITNESS - Weighs just 1.8 lbs—perfect for workouts at home, office, or on the go.

The WorldFit ISO Trainer is a premium isometric exercise tool proudly made in the USA using military-grade webbing and durable silicone grips. Weighing only 1.8 lbs, it offers a safe, joint-friendly way to build strength, flexibility, and endurance through isometric exercises suitable for all ages and fitness levels. Portable and versatile, it supports strength training, stretching, yoga, and Pilates, backed by a 100% satisfaction guarantee.

Specifications

ASIN	B07MJM62ZD
Best Sellers Rank	#46,793 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #479 in Resistance Bands
Brand Name	WorldFit
Color	Black
Customer Reviews	4.7 4.7 out of 5 stars (365)
Manufacturer	WorldFit
Material	Silicone
Number of Items	1
Number of Packs	1
Style	Pull Up
UPC	680577972179

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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