PURPOSE: To obtain a stable supportability not only at normal times but also at the time of perspiration by covering the holding part of the object from the male side to the female side with a gripper, drawing near two folds of the female sides of the gripper, fitting the inside made at folds to the male side and mounting a group of projections on the periphery so that the whole part of the gripper can be rounded around the holding part.

CONSTITUTION: A writing instrument 32, is none other than a conventional sharp pencil whose body containing a functioning part 33 (lead end) and an approximately tapered part 33 from which the functioning part can be pushed out and a lead casing is constituted of a cylindrical body 35 about 17mm in external diameter screwed together with the approximately tapered part 34 and is formed of plastics on the whole. The holding part 17 is located about 20 to 30mm upward from the functioning part 33. Then non-engaged side of the male part 15 is directed to the object 16 while a temporary fixture 25 is placed on the right side of the holding part as observed from us and the middle portion of the male side 15 is pushed to the holding part 17. Further the temporary fixture 25 is strongly grasped with the right hand while the male side 15 is rounded onto the holding part 17.