How does the timer attach to the band?

you have to take the clip off, but it just slides right into the watch band and locks very nicely.

Description says "one size fits all" but there are 2 sizes offered. What are the measurements for the different sizes (small & large)? Thanks.

Never thought to measure and bought the smaller. It's adjustable, so while it does fit, I would say it's a bit tighter than I prefer so I bought the larger one. I don't think I have a particularly big wrist. Male, 5' 11" but no idea what my wrist size is.

Does this strap completely cover the back of the gym boss?

Yes the plastic mounting is the same size as the gym boss it clips on but you can still change the battery with it connected

I have a wrist size 7 inches. Which strap would you recommend since the small and large seem to be right around there?

I have a seven inch wrist and it fits fine.The strap measures nine inches in length. Since I purchased awhile ago, I think I purchased the large. I think you will be okay with the large. Also, the timer fits fine. However, at times it has a tendency to loosen. Make sure to it is tight prior to each use. I like the product. I hope it helps.

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Gymboss Interval Timer and Stopwatch Watch Strap – Black

Product ID: 47886776

⌚Secure snap-on fit

💨Breathable perforated band

🔧Durable black stainless steel hardware

398 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⌚ Elevate your workout game—wear your timer, own your time!

BUILT TO LAST - Robust black stainless steel hardware with 1-year warranty for peace of mind
UNIVERSAL FIT - One size fits wrists from 5 ¾ to 9 ¼ inches (146mm–235mm)
ALL DAY COMFORT - Breathable perforated strap keeps your wrist cool during intense workouts
SNAP GO CONVENIENCE - Quick, secure attachment for any Gymboss with removable clip
VIBRATION YOU CAN FEEL - Optimized strap design transmits Gymboss’s vibrating alarm directly to your wrist

This premium black watch strap is designed exclusively for Gymboss Interval Timers with removable belt clips, enabling a secure wrist-worn experience. Crafted with breathable perforated material and durable black stainless steel hardware, it fits a wide range of wrist sizes (146mm–235mm) and ensures the timer’s vibration is clearly felt during any activity. Perfect for runners, coaches, and fitness pros who demand precision and comfort in their training gear.

Specifications

Care instructions	Clean with mild soap and water. Avoid exposure to extreme heat. Store in a cool, dry place when not in use.
Country of origin	China

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