Stairville Round Sling WSL-20 2m

I have 100’s of slings and ordered these with express shipping for a last minute job that came in thinking I was on a winner until I realised when they arrived it was circumference measurement . Never heard of it before . all my other slings are measured in length so I don’t know what’s the idea behind it. It has a tag with the safety information on it but it’s hidden in behind part of the sling sleeve which provides a bit of protection for the label. It’s a nice idea but when trying to identify slings quickly can be much slower than the traditional tag hanging out the side .
Aesthetically it’s nicer to the eye than seeing a label hanging out. It’s what ever u prefer really. Any way to summarise my fault should have read that the measurement was circumference but in my defence it was the first time in 28 years I have ever seen such a measurement for a sling . Now I need to buy some 2m slings instead of 1m ones like these. 😂