Assertion: end trampoline | /r/CapableOf | use a nine-inch spring
Facets:
value: with a minimum of 108 springs
type: OTHER
Source sentences:
text: While most high-end trampolines use a nine-inch spring with a minimum of 108 springs, the 15-foot Skywalker has 96 springs of 6.5 feet, which affects the height of your jump.