21st Birthday Keepsake Glass Block
- Gift Details. This 21st birthday square glass keepsake features a big number 21, under which are your personalisation details, add Any Message. At the very bottom is four etched hearts or a star design. It’s a funky, modern chunk of glass that’ll look right at home on a mantelpiece. You can personalise your 21st birthday glass keepsake with Any Message up to three lines of 25 characters. The glass square measures in at 8 x 8 x 2cm & weighs 375g. It’ll also come packaged in a gift box. Choose to have either a heart or star design engraved onto your glass block. Your text will be made exactly as you have entered it, so please double check spelling, punctuation & capitalisation. Accents & other symbols cannot be used unless otherwise stated.