Constructed of high-density polyethylene, these pollination bags are ideal to prevent foreign natural insect pollination while allowing to pass the appropriate levels of sunlight and moisture. The bags are very easy to use. Simply position it over the developing flower and tie at the bottom. When timing is appropriate for pollination, the bags may be easily slit open, with scissors or a penknife. After manual pollination, the bag is closed using either a twist tie or paperclip. Once seeds are ready to harvest the stalk may be cut providing a handy carrier, until the seeds can be harvested. These bags can be used for numerous plants and crops as they are available in a variety of sizes and can be heat-sealed or sewn to best match your specific requirements.