The Mind Expander twin has a twin shape with a directional flex pattern

A ready-to-go classic

waterproof DryVent™ technology

and a silicone gripper palm pattern

Strikes a predictable balance between durability

Powell Peralta OG Ripper Checker Deck Size:10" The Mind Expander twin hasLONG 4 2. 5" old school truck hole pattern About the Ripper Artwork: Arguably the most iconic skateboard graphic of all time, "The Ripper" was illustrated in 1983 by legendary Powell Peralta artist V. C. Johnson. Originally the graphic was used as a "Bones Sold Here" dealer window sticker, then the artwork found it's way onto t shirts and eventually decks. The Ripper graphic has stood the test of time and has been a staple of the Powell Peralta line