Why doesn't this come with an insert with suggestions for use? I had to come back to this page for suggestions.

It's easy to use. Based off picture the upper part is for your lower back. The flat part is for you tail bone. I have a mat myself.

Kind of like doing a half a sit up at a time?

No, the intent of an ab-mat sit-up is to go all the way back and get full extension, the curve of the mat should support the natural curve of your back.

We don’t see why not, it’s kind of narrow so it might be uncomfortable around the back arm area when bench pressing.

In what country are these made?

We can't say for sure , but , we believe the company Yes4all is in China

Yes4All Ab Exercise Mat with Tailbone Protecting Pad, Abdominal Wedge – Support for Abs Workout, Sit Up Protector (Black)

产品编号: 381838026

细节

Item Weight
0.8 Kilograms
Brand
Yes4All
Material
Acrylonitrile
Tension Level
150 kilograms
Handle Type
Fixed Handle

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NT$7011

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Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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细节

Item Weight
0.8 Kilograms
Brand
Yes4All
Material
Acrylonitrile

描述

规格

Maximum Weight Recommendation	150 Kilograms
UPC	817802028848 817802029890
Department	unisex adult
Item model number	6CLE
ASIN	B073VCMBSZ

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