Abstract: A retractable, refillable, sharpen-free pencil assembly comprises an outer tube, an inner tube and several sections of pre-sharpened leads. The inner tube is movable relative to the outer tube. An upper half portion of the inner tube is enlarged by fitting a squeezing tube such that a spring can be positioned below the squeezing tube. When the inner tube is shifted, a lower portion of a spring pushes a lowest lead to a chucking device by which the lead is tightly gripped. A push plate attached to the slot of the outer tube has a squeezing portion engaged with the last coil of the spring. Sliding the push plate upward can pull the lower portion of the spring out of the inner tube. The propelled lead can be retracted into the inner tube and the inner tube can be pulled back and enclosed completely by the outer tube.

Abstract: A useful writing implement which comprises an outer casing and an inner tube inserted into the outer casing for storing a plurality of presharpened leads. The outer casing has an intregrally formed protrudent flexible elongated reduced neck portion for releasably engaging an upper enlarged portion of the inner tube. The neck portion is integrally formed with a lateral triangular flat protrustion for partially covering the upper enlarged portion of the inner tube for preventing the presharpened leads from slipping out of the inner tube. The outer casing is integrally formed with a dependent leg for insertion into a longitudianl slot provided at the lower end of the inner tube, the leg being integrally formed with an inward hook-shaped portion which will be forced to extend into the slot and slide on a longitudinal slide side wall provided at the upper end of the slot, to allow the leads to fall down when the inner tube is moved downward.