Easter Egg. Left on 04/1/2018 Easter Sunday - April FOOLS Day

Congradulations You have found a EasterEgg.
Happy Easter and April Fools to All that Have Seen this.
Answer this Riddle in an Email to me support@pccables.com

A box without hinges, key, or lid,
yet golden treasure inside is hid.

I will send you a FREE GIFT as a Reward.
Sincerely, Jay F Kullmann