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This product is designed as a thumbtack pen. By using the idea of automatic pencils, together with the improved stackable thumbtacks, it is available to reduce the possibilities of injuries but improve the convenience of storage and use.
It is widely seen thumbtacks are oftentimes placed in a storage box in messy order. Such a situation does not only cause the possibilities of stab wounds, but also bring with inconvenience of use and carriage. these improved thumbtacks can not only reduce volume with the placement in good order, but also decrease the danger of use with handy operational effort available.
Far East University