People with arachnophobia are technically defined as “Individuals who have an irrational fear of spiders.” Though one look at a stunningly detailed prop like this Tarantula Specimen Jar, and an arachnophobe would tell you that the fear is truly rational. Add to this the glass looks like the sort of thing that an entomologist would keep on hand to add to the hyper-realism.
The suspension of disbelief is a key component of any practical joke or special effects scene. The right touches of reality and detail ultimately go a long way toward convincing all who behold the scene that what they are seeing is indeed real. So, if you need to depict a scene where arachnophobia has gone wrong, or a mad scientist who has bad taste in pets then this Tarantula Specimen jar might just be the perfect prop.