<p>These 1/2" diameter hoops are manufactured out of tubing made with extra thick walls to prevent kinking. Yes, they might kink, but your kids will have to be determined. Made in the USA. Be aware that &ldquo;Basic&rdquo; hoops (offered by others) have walls that are not as thick as our &ldquo;Deluxe&rdquo; hoops. Our &ldquo;No-Kink&rdquo; hoops are even thicker! Because the &ldquo;Skinny&rdquo; hoops have less hollow space (yet about as thick as the &ldquo;Basic&rdquo;) they may be the strongest of all!</p>