http://www.beckett.com/news/2017-topps-legends-of-wwe/

Twelve-pack boxes come in the form of two mini boxes, each with at least one autograph and an additional hit.

2017 Topps Legends of WWE at a glance:

Packs per box: 12 (2 6-pack mini boxes)
Cards per pack: 5
Boxes per case: 8
Set size: 100 cards
Release date: September 20, 2017