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
A (letter) Letter sized paper measures 8.5 x 11 or 216 x 279 mm. This type of paper is the most common paper size in the U.S. Letter sized paper is used for a wide variety of printing needs including correspondence, signs, and other documents. Legal sized paper measures 8.5 x 14 or 216 x 236 mm. This type of paper is commonly used for legal documents such as contracts.