Pearl Mechaplast supplies Pen Holder with Paper Calculator. Pearl Mechaplast is an ISO 9001: 2000 recognised company manufacturing a wide range of Creative and Promotional Gifts like pen holders, wheel charts, slide charts and pen dispensers. The Pen Holder with Paper Calculator is a ready reckoner for weights of Paper & board at various GSM and sizes. The Pen Holder is hand & useful for printing and packaging industries and can also be used for branding or promotional applications.