<https://www.discountschoolsupply.com/stem-curriculum/stem/science/mystery-sensory-balls-set-of-6/p/41059>
<http://schema.org/description>
"A set of 6 reflective mirror balls that look identical but have individual characteristics. &lt;UL STYLE=color:black&gt;&lt;LI&gt;Shiny mirror surface provides a distorted fish-eye lens reflection which is fascinating for children to observe&lt;BR&gt;&lt;LI&gt;Mirrored balls are ideal for outdoor learning with the reflection of sunlight.  For best results store indoors.&lt;BR&gt;&lt;LI&gt;Some wobble when rolled, or turn and won&#039;t roll in a straight line&lt;BR&gt;&lt;LI&gt;Constructed from hard wearing stainless steel&lt;BR&gt;&lt;LI&gt;Balls are lightweight, smooth and tactile to handle&lt;BR&gt;&lt;LI&gt;They appeal to children with special needs, or for those requiring inspiration in creative language&lt;BR&gt;&lt;LI&gt;Some feel odd when twisted, spun or shaken and others make different shaker or rattle sounds. &lt;BR&gt;&lt;LI&gt;Sensory balls are 4&#034;Dia. &lt;!--  reflective mirror balls  identical  individual characteristics  wobble  roll  rolled  turn  straight line  twisted  spun  shaken  shaker  rattle sounds  shiny mirror surface  distorted fish-eye lens reflection  stainless steel  lightweight  smooth  tactile  special needs  sensory  mystery   reflective mirror balls  identical  individual characteristics  wobble  roll  rolled  turn  straight line  twisted  spun  shaken  shaker  rattle sounds  shiny mirror surface  distorted fish-eye lens reflection  stainless steel  lightweight  smooth  tactile  special needs  sensory  mystery  --&gt;&lt;/UL&gt;"
<https://www.discountschoolsupply.com/stem-curriculum/stem/science/mystery-sensory-balls-set-of-6/p/41059>