It's about three times as wide as a Strand of Hair
It's about three times as tall as a sheet of Paper
It's about one-fourth as long as a Grain of Sand
In other words, 300.30 microns is 0.240 times the length of a Grain of Sand, and the length of a Grain of Sand is 4.170 times that amount.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 1.25 mm. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 15.10 m (49.55 ft) in height.
It's about one-fifth as wide as a Strand of Spaghetti
In other words, 300.30 microns is 0.180 times the width of a Strand of Spaghetti, and the width of a Strand of Spaghetti is 5.60 times that amount.(average; restaurant and supermarket applications) (based on FMA Omcan Italian Made TR50 Counter Top Pasta Machine Extruder 13317)
An average strand of restaurant-grade spaghetti measures 1.7 mm in thickness. In 2010, a California Buca di Beppo set a world record by preparing a 13,780-lb bowl of spaghetti, served in a swimming pool.
It's about 40 times as long as a Red Blood Cell
In other words, the length of a Red Blood Cell is 0.025 times 300.30 microns.(a.k.a. RBCs, a.k.a. haematids, a.k.a. erythrocyte, a.k.a. erythroid cells, a.k.a. red blood corpuscles)
An average Red Blood Cell measures 7.5 µm (micrometers) in diameter. An average human has 20 - 30 trillion red blood cells in their body and each cell completes a circulatory lap in about 20 seconds.
It's about one-fiftieth as long as an Aspirin
In other words, the length of an Aspirin is 48 times 300.30 microns.(for up & up aspirin, 325mg, regular strength tablets) (a.k.a. acetylsalicylic acid, a.k.a. ASA)
A single aspirin tablet measures 14 mm in diameter. One of the most common medicines in the world and a foundation of worldwide health systems, an estimated 40,000 metric tons of aspirin are consumed each year.
It's about 50 times as long as a Cell's Nucleus
In other words, the length of a Cell's Nucleus is 0.02 times 300.30 microns.(for animal cell)
The nucleus of an animal cell measures an average of six micrometers. The nucleus is the largest organelle in these cells, accounting for about 10% of the cell's total volume.