A multi-purpose combination writing instrument (100, 200) comprising: a writing instrument holder comprising two casing members (101, 102, 201, 202, 300) connected together laterally by a retractable unwinding tool (103, 301), wherein the casing members (101, 102, 201, 202, 300) are outside of the retractable unwinding tool (103, 301) such that the retractable unwinding tool (103, 301) is inside of one or both of the casing members (101, 102, 201, 202, 300) when retracted, each casing member (101, 102, 201, 202, 300) comprising an opening adapted to receive the retractable unwinding tool (103, 301) and wherein the opening of each casing member (101, 102, 201, 202, 300) faces each other and the retractable unwinding tool (103, 301) enters the casing member (101, 102, 201, 202, 300) from the opening; and said multi-purpose combination writing instrument (100, 200) comprising one to four removable individual writing instruments (109, 110, 116, 117, 205, 206, 210, 211) attached to the casing members (101, 102, 201, 202, 300) of the writing instrument holder; the multi-purpose combination writing instrument (100, 200) further comprising an automatic retracting mechanism inside each casing member (101, 102, 201, 202, 300), said automatic retracting mechanism adapted to automatically retract the retractable unwinding tool (103, 301), said automatic retracting mechanism being attached to the retractable unwinding tool (103, 301), such that when the retractable unwinding tool (103, 301) is retracted into the opening in one or both of the casing members (101, 102, 201, 202, 300), it is stored inside one or both of the casing members (101, 102, 201, 202, 300); wherein the retractable unwinding tool (103, 301) further comprises two stoppers (105, 106) located at around the middle of the retractable unwinding tool (103, 301), one on the top of the retractable unwinding tool and one on the bottom of the retractable unwinding tool, said stoppers (105, 106) being adapted to ensure that the retractable unwinding tool (103, 301) does not retract disproportionately into the two casing members (101, 102, 201, 202, 300). a writing instrument holder comprising two casing members (101, 102, 201, 202, 300) connected together laterally by a retractable unwinding tool (103, 301), wherein the casing members (101, 102, 201, 202, 300) are outside of the retractable unwinding tool (103, 301) such that the retractable unwinding tool (103, 301) is inside of one or both of the casing members (101, 102, 201, 202, 300) when retracted, each casing member (101, 102, 201, 202, 300) comprising an opening adapted to receive the retractable unwinding tool (103, 301) and wherein the opening of each casing member (101, 102, 201, 202, 300) faces each other and the retractable unwinding tool (103, 301) enters the casing member (101, 102, 201, 202, 300) from the opening; and said multi-purpose combination writing instrument (100, 200) comprising one to four removable individual writing instruments (109, 110, 116, 117, 205, 206, 210, 211) attached to the casing members (101, 102, 201, 202, 300) of the writing instrument holder; the multi-purpose combination writing instrument (100, 200) further comprising an automatic retracting mechanism inside each casing member (101, 102, 201, 202, 300), said automatic retracting mechanism adapted to automatically retract the retractable unwinding tool (103, 301), said automatic retracting mechanism being attached to the retractable unwinding tool (103, 301), such that when the retractable unwinding tool (103, 301) is retracted into the opening in one or both of the casing members (101, 102, 201, 202, 300), it is stored inside one or both of the casing members (101, 102, 201, 202, 300); wherein the retractable unwinding tool (103, 301) further comprises two stoppers (105, 106) located at around the middle of the retractable unwinding tool (103, 301), one on the top of the retractable unwinding tool and one on the bottom of the retractable unwinding tool, said stoppers (105, 106) being adapted to ensure that the retractable unwinding tool (103, 301) does not retract disproportionately into the two casing members (101, 102, 201, 202, 300).