Patent ID: 8147940

Claim:
A piece of cloth comprising: a hexagonal central part; and first and second peripheral edge parts located alternately at peripheral edges of the central part, wherein the first and second peripheral edge parts share respective one sides of the central part, the first peripheral edge parts each share two apexes of the central part, a first cut having a length shorter than a length of the side but longer than a quarter thereof is provided in a border line of the first peripheral edge part and the central part, a second cut having a length equal to or slightly longer than one half of a difference in the length between the side and the first cut is provided on a border line of the second peripheral edge part and the central part from opposite ends of the side, three first cuts in a first piece of cloth and second cuts in three second pieces of cloth having a same shape as the first piece of cloth can be positioned and fitted into each other for connection, and the three second cuts in the first piece of cloth and first cuts in three third pieces of cloth different from the three second pieces of cloth and having the same shape as the first piece of cloth can be positioned and fitted into each other for connection.