Swirly green tamper in natural rubber also called Cumberland. You might know it from brands and Pipemakers that use it for the stem. Primarily in swirly brown but here you have it in swirly blue.
Its a very smart pipetool. When you push the top the tobacco tamper comes out. When you push again and shake it it goes back. If you pull the top you have a perfect pick to help you empty the bowl and to clean the shank.