The Amazon link worked for me. Looks like the nancysnotions link is the same thing. Did you read the Amazon reviews? Seems to be not sturdy enough to rest your hands or arms on, plus it looks awfully small to me. I don't think I would like the base resting on my legs either. I'd probably make my own out of a lap desk like this one:
https://www.amazon.com/Honey-Can-Do-...dp/B00FQK14UE/
and glue a sturdy pillow on top. The beanbag bottom on the lap desk would work better for me than a wood base.