What is the width of these? Trying to work out whether they're narrow enough to fit enough weight onto some dumbells with shorter sleeves

Width 4.8cm. If you are going to use these collars for your dumbbells then please use the dumbbells only in a horizontal position.

Could you make white ones please?

I don't make them I just buy them, I think they do red as well as black, not sure about white.

Will it fix my 7 foot Olympic weight bar

They fit my 2” diameter 7ft olympic bar

What is the maximum weight these will safely hold per side and will they fit a 28 mm diameter bar neatly?

These are for 2" (50mm) Olympic bars and so will not fit 28mm bars. For what it's worth I've had 60Kg on each end without any issues.

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Olympic Barbell Collar Pair of 2" Inch Pro ABS Locking Set of 2 Black Clamps Perfect for Pro Crossfit Strong Lifts and Olympic Training Professional Quality

Product ID: 284148205

Details

Brand
Iron Lab
Colour
Black
Item dimensions L x W x H
5.1 x 5.1 x
Item weight
0.46 Pounds
Material
Nylon Rubber
Number of Packs
1

💪High-strength nylon build

⏱️Quick-change locking

🛡️Secure cam clamp grip

€ 36.03

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🏋️‍♂️ Lock in your gains, unlock your potential!

BUILT TO LAST - Durable high-pressure nylon resists wear and tear, gym-proof for years.
UNSHAKABLE SAFETY - Cam clamp design locks plates tight so you lift with total confidence.
RISK FREE GUARANTEE - Full warranty means if it’s not perfect, we replace or refund—no questions asked.
PRO GRADE COMPATIBILITY - Perfect fit for 2” Olympic bars—ideal for CrossFit, Olympic lifts, and heavy sessions.
SWITCH WEIGHTS IN SECONDS - Ditch spring clips—lock and load faster for max training flow.

Iron Lab Olympic Barbell Collar Pair offers a professional-grade, quick-locking solution for 2-inch Olympic bars. Crafted from high-strength nylon with a secure cam clamp mechanism, these collars ensure fast weight changes and uncompromising safety during intense CrossFit and Olympic training. Durable, reliable, and backed by a full warranty, they’re the smart choice for serious lifters who demand performance and peace of mind.

Specifications

ASIN	B01DL2YVBM
Best Sellers Rank	1,270 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 1 in Fitness Collars
Brand	Iron Lab
Colour	Black
Country of Origin	China
Customer Reviews	4.7 4.7 out of 5 stars (2,805)
Item Diameter	2 Inches
Item Dimensions	5.1 x 5.1 x 5.1 centimetres
Item Weight	0.46 Pounds
Manufacturer	Iron Lab
Material	Nylon, Rubber
Model Number	43237-2
Number of Items	2
Number of Packs	1
Part Number	43237-2
Set Name	Olympic Barbell Clips Set of 2
Style	Barbell Clips
UPC	646117676723
Unit Count	2.0 count

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€ 36.03

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 week ago

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The delivery time was excellent, and the packaging was secure.

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