Venom Downhill Bushings
Pastel Pink 73a (Even softer!)Blue 78a (Softest)
Orange 81a (Softer)
Yellow 85a (Soft)
Purple 87a (Medium Soft)
Red 90a (Medium)
Green 93a (Hard)Glow in the Dark 95a (Medium Hard)
Pink 97a (Hardest) Each quantity of 1 purchased is a single bushing.
You have 2 trucks per skateboard, & each truck takes 2 bushings.
So for a complete skateboard, you need to buy a quantity of 4. 
BAMBOO Medium
The Bamboo medium is the standard. Equate the amount of flex on this board to be similar to the maple 7 ply version of this deck. This is the board that will work the best for the most amount of riders. Anyone between 150 and 210 pounds should be able to ride this board, and riders at the top of this limit should only choose this board if they want a lot of flex. Please note that the more you weigh, the more force you will put on these boards, so if you’re near its upper limit, consider how you manage dropping off of curbs, for example. Riders toward the bottom of this limit may choose this board for a more snappy flex and a little less sag. You can create more space between the board and the ground by adding risers and larger wheels like our 102mm Hoku Wheels. I (Jeff, the owner/designer of Pantheon boards) am 190 pounds and I ride the medium flex. The board has a comfortable flex under my weight.