Thicker and tougher than the “regular” ones, I mean. And yes, they taste bad, too! You know Koreans eat pretty much anything and everything, especially when it comes to vegetables/fruits/weeds (or I tell my kids the “Korean veggies,” such as plantago, dandelion, shepherds purse, crown daisy, etc. )/plants/roots/tree barks, so on! So when Koreans don’t eat it, then there’s a good reason for it! lol