They are okay but nothing bad. The ones in the middle which are exposed to the flame discolored a little bit after 2 hours of burn time and they aren’t super sparkly like some I’ve seen in other brands but they are okay, good size for moving around the flame holes to keep the flames flying high, so that’s nice. They feel a little plastic to me instead of sharp heavy pieces of glass. 
 Got the clear 34 inch rocks so fir the price they are okay but fir the price will do fir now.