Metal grip for Pentel EnerGel knock-type pens. Black New, unopened This is a replacement grip for ballpoint pens. Switching from a sticky rubber grip to a metal one will solve your problems. Purchased on Amazon for 1,750 yen. Ballpoint pen not included. Can be used with other ballpoint pens if the diameter and overall length of the threaded part match. From a non-smoking, pet-free environment. Thank you for looking.