Retractable writing instrument

Retractile pen

Rotary locator with differential position in a pen

Rotary-cam ball-point pen

Self-retractable pen

Side knock-type ball point pen

Telescopic device with a firm positioning effect

Voice pen for generating audible messages

Writing appliance

Writing appliance that closes automatically after a given time i

Writing implement

Writing implement

Writing instrument

Writing instrument

Writing instrument

Writing instrument comprising a cartridge support

Writing instrument having multiple writing elements

Writing instrument operated by a finger at a holding position

Writing instrument with a retraction device