Includes: one (1) book of perforated vouchers 7.5 x 3.25 inches; sold as a single unit containing 15 unique coupons. Let your BFFs know how much you see adore and appreciate 'em with this sparkling booklet of personalizable feel-good friendship coupons. Simply fill out all 15 vouchers and hand 'em over to be cashed in anytime for favors fun pampering props and all-around good vibes. File under: best friend birthday gifts that keep on giving x 15! Because who doesn't want bff gifts sure to make 'em cry (in a good way)? Shiny metallic stamping for extra friendship gifts razzle-dazzle. Knock Knock is an independent maker of clever gifts books and whatever else we can think up; our mission is to bring humor creativity and smarts to everyday life. Put the fun in functional with Knock Knock stuff!