Good quality of Double color wax crayon is very convenient for wrinting because there are two colors on one crayon.  It is up to you what color you want. Double-headed crayons is big one with size of 1.4X9.8CM.  We also can make the package of the double-headed crayons as your requirements. Non-toxic, premium quality and fully safely tested for kids 3 & up. Meet Safety Standard ASTM D-4236, EN71.Fun for kids in school classrooms, daycare, restaurants, doctor's office, hair salon, etc.we are professional manufacturer of specialized in the production of double-headed crayons. We make all kinds of crayons like Double-headed crayons, Washable crayon, Triangle crayons, Erasable crayon,Bullet-head crayon, bath crayon, If you want to know the newest price about the products of this crayons please email us then we will quote it to you as your requirements. We have many years to make the olor crayons and please email or call thanks.