Each toy in the set is shaped like a classic crayon and constructed from durable cotton twill fabric built to hold up to enthusiastic biting and batting. The toys are stuffed with organically grown catnip and contain no fillers or added chemicals. The colorful exteriors are dyed with non-bleed vegetable-based dyes rather than synthetic pigments. All three toys are produced in the United States. The set arrives packaged together in a crayon-box style container. No assembly or setup is required before offering the toys to a cat.