Using the offer below, identify the essential elements with respect to the terms of the offer. For instance, does the proposal meet the three conditions to qualify as a contractual offer? Does the offer include the four essential elements of certainty and definiteness? Do you have any further comments or questions about the offer?

OFFER: MacBook Pro for sale $85. The mac is a white series Pro1. Originally purchased it in 2020 for just over $250. It has barely been used and charges perfectly. The Mac will come with the original charger and the box it when purchased. Unfortunately, the box will not container a screen protector for the device as I lost it in-between moving homes. It has a tiny scratch on the non-visible side but no other marks or damage. This Mac bluetooth device compatible. The price is non-negotiable!