Imprinting your logo on this flask is a great way to advertise your business or organization. Seeing your logo on this flask will make employees and customers take notice and promote your business. Also makes a cool drinking glass. Some sizes have an enlarged rim to allow for different stopper sizes (NOT shown in the photo).
As with most laboratory glassware these mugs are hand crafted/blown and therefore will have some minor imperfections (small bubbles trapped in the glass, slight waves/swirls in the thickness/texture, minor curves to the rim, etc). They will not effect the functionality or general look of the item. Due to the slanted shape there will be some correlating distortion of the imprint (e.g. a rectangle will look slightly like a trapezoid and a circle will have a slight egg shape).