Sure-Grip XK4 DA45 Racing Plate for Roller Skate
The XK-4 DA plate from Sure-Grip line is using the original forged plate with a special double action 45 degree truck makes this plate unique and allows the skater to have all 4 wheels on the floor longer.
The XK4 feature a Twisted jump bar is included for increased strength.

SG XK4 DA45 sold in Pair
Features
Sure Grip XK4 DA45 Plate:

The XK-4 DA plate from Sure-Grip line is using the original forged plate with a special double action 45 degree truck makes this plate unique and allows the skater to have all 4 wheels on the floor longer.
 
Newly developed cushions were added to help this plate acheive a rebound like no other, the quick response and superb handling is second to none.
 
Adjustable pivots were also added to allow the skater to fine tune the action of the truck to get the most out of them at the highest level of competition.
 
Twisted jump bar is included for increased strength.