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.

Gymboss Interval Timer And Stopwatch Watch Strap Black

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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HK$210

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Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⌚ Elevate your interval game—wear your Gymboss like a pro!

UNIVERSAL FIT - One size fits wrists from 5 ¾ to 9 ¼ inches (146mm–235mm)
SLEEK STRONG - Black stainless steel hardware combines style with lasting strength
SNAP ON SECURITY - Quick, secure attachment for any Gymboss timer with removable clip
BREATHABLE DURABILITY - High-quality perforated band keeps you cool and comfortable during workouts
VIBRATION YOU CAN FEEL - Ensures timer alerts are fully transmitted to your wrist, perfect for runners and coaches

This premium black watch strap is designed exclusively for Gymboss Interval Timers with removable belt clips, transforming your timer into a wrist-worn powerhouse. Engineered for comfort and durability, its breathable perforated band fits a wide range of wrist sizes and ensures vibration alerts are felt clearly during any workout. Ideal for runners, coaches, and fitness enthusiasts who demand precision and convenience on the move.

Specifications

ASIN	B0FX7XRZD7
Best Sellers Rank	47,280 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 81 in Stopwatches
Customer reviews	4.3 4.3 out of 5 stars (361)
Date First Available	22 Oct. 2025
Manufacturer	Gymboss

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