The cup is made of a very durable plastic.
It has been impact tested by striking it with a puck at the equivalent*
momentum of a 100 mph slap shot. There was no damage.
The momentum was doubled to 200 mph. There was no damage.
Play Safe!!!!! (see video under MEDIA)
* Momentum is = MASS X VELOCITY
Since there is no reliable method to accurately propel a puck at 100/200mph
we used a gravity drop to impact test. The formula a=9.8m/ss was used to
determine the velocity from a given height. The MASS of the striker was increased
appropriately for equivalence to 100/200mph slap shot.