Most drop towers require child riders to exceed a minimum height; limits vary widely depending upon the nature of the tower, with a 30-foot (9 m) tower for smaller children from 37 inches (95 cm) tall, and a 115-foot (35 m) tower having a 51-inch (130 cm) restriction.
How many sheet of copy paper equal an inch? Using good quality 24 pound paper, a one inch thick stack is about 215 sheets. Using the more common 20 pound paper - popular in schools - one inch is about 250 sheets. Edit
Confidence votes 65. A ream (500 sheets) of 20 lb office paper is just under 2 inches thick, so one sheet cannot be 0.001 (one-thousandth of an inch). It's closer to 0.004 inches (more like 0.0038). At 25.4 mm per inch, this gives us about 0.09652 mm, or just under one-tenth of a millimeter thick.