2021/22 Leaf Pro Set Power Basketball Sealed Hobby Box 7 Auto's per Box. This product data sheet is originally written in English. 2021-22 Pro Set Power Basketball Hobby Box. This release features an unparalleled selection of upcoming basketball draftees and future draftees from all levels, including college and even the nation's top high school prospects.Plus, Stephen Curry and Giannis Antetokounmpo will a. Ppear in this killer release. Also, look for dual signed cards in this release. 2021-22 Pro Set Power Basketball Hobby Box Configuration: 7 autographs per box. Plus, Stephen Curry and Giannis Antetokounmpo will appear in this killer release.