Released in April, this 60-card set is broken down into three different 20-card subsets, each utilizing a different print technology. There are 20 PRO-Motion cards (Light F/X cards featuring a special foil stock), 20 Future Impact cards (Cel-Chrome cards that feature a 3-D image on transparent chromium), and 20 Homerun Heroes (Electric Wood cards printed on an embossed wood/paper stock). Cards were sold in three-card packs (with one subset card per pack) for $3.99 each. Inserts include Superb Signatures, Generation Next and Marquee Attraction. - 2007 Standard Catalog of Baseball Cards, 16th Edition.