Optical & technically proficient.

Visually and technically good. Really inexpensive and serve its purpose fully. The stand is firmly and securely. The only drawback, that someone has already mentioned here, is the relatively thin shell (the green pad). They are in regular exercise not just thicker. Although one must not suffer unbearable pain, but you can tell it anyway. I'm going to get even foam / Tennis Band / racing strip and wrap it again. Most especially racing band feels anyway valent as foam and should resolve the issue as well.

Despite strong buy recommendation but deliver with an asterisk.