You may have already noticed that many of our filaments do not come on a spool, this is because we feel that producing a bulky plastic spool and then sending it to you is unnecessary and will drive the price of the filaments up.
Therefore we’ve have designed a handy filament holder for small amounts of filament and provided a link to a printable spool that was designed by a fellow Ultimaker user. Both are designed to work with both the Ultimaker Original and Ultimaker 2.