The Quiet Little Mouse is a pattern for a 4" stuffed mouse knitted in the round, stuffed with polyester fiberfill. The pattern for the hat is included. You should know how to knit in the round to attempt this pattern, as well as basic knowledge of increases and decreases. I've included the instructions for both knitting and crocheting the ears; choose whichever you prefer.My mouse is made in worsted weight wool and has size 6mm black plastic safety eyes.