Beep beep! For your son s next birthday party invite your guests and friends with this 16-count Turbo Invitation and Thank You Pack to celebrate the occasion. This combo set contains 8 4x5 postcard-style invitations that features Turbo on the front with the message The Ultimate Birthday 500 Time to Snail Up and accelerate into action and spaces to write your party information on the reverse. It also includes 8 4x5 postcard style thank you notes that features Turbo on the front with the message Thank you for racing with me and spaces to write an address and message on the reverse. Eight envelopes for the invites. These colorful invitations are the perfect way to invite your guests to your Turbo party and the friendly Thank You notes will know how much you appreciate them. Simply write your party information or thank you message seal the envelopes and send them off via snail mail. Multi-colored. 18 per set.