SPORTLAND IAAF DISCUS SYNTHETIC
Sportland IAAF Discus Synthetic is available in 4 different weights with a 85% rim weight. This discus is perfect for the high level thrower with durable ABS plates.
The rim weight is the percentage of the entire weight of the discus that is comprised of the rim. So if you have a 1kg discus that is 75% rim weight, that means the rim weighs .75 g & everything else that makes up the discus weighs .25g, in total 1KG (but the rim is 75% of the total weight)