RIZLA Blue King size slim rolling paper - Pack of 50 RIZLA Blue King size slim rolling papers are the same fine weight as the blue King sizes but are longer and slimmer (108x44mm). blue slims will burn slower due to them being thinner but are slightly harder to roll with, due to the thinness. RIZLA papers are FSC certified, which helps to maintain the world's most important forest resources. RIZLA use ONLY the finest quality gum on their papers. A paper slip folded in with the leaves reminds you when you're running low. It can be used with any 110mm rolling machine. This papers are made from rice. The adhesive made from 100% natural Arabic gum.