Plastic and rubber balls are rolling, spherical elements that have low friction values and require little or no lubrication. They are lighter than metal balls and resistant corrosion and abrasion.
Description: Molded in clear acrylic, these acrylic balls are completely transparent, versatile, and exhibit great resistance to breakage. High temperature range of 140 - 200F. Hardness rockwell - M80 ...
People said the 1,400-pound rubber band ball was too heavy to be fun—so we proved them wrong! After adding 50 more pounds to hit 1,500, we put it to the test with an epic bowling pin challenge.
Dylan Ayres on MSN1 天
Rubber band ball
Travel through the eyes of the crew, as this Boeing 737 lands in Istanbul.