I love that this set is spot on for the Octonauts characters. The downside is the engineering. This brand of Lego-like toys is more for the eyes than the hands (unless the kids are older). My 5 year old Octonaught loving son wasn't able to enjoy the bigger sets. The smaller vehicles are fine but the Octopod was a flop.Love it!!!My 3-year-old was so excited to send these out! Bright and sturdy and places for all necessary party info. Only wish there was a blank space for a short party note.Glad to find some actual octonaut invites! The inside says party for, date, time, place, RSVP. Normal, not flimsy.The cards arrived as scheduled. Invitations and envelopes were a good quality paper - heavier weight.Very cute invitations - daughter loved them for her party!Perfect cards for an Octonauts party.Nice addition to the partyLoved them! Very cute!