Leg Quadriceps 
The X-Force Leg Quadriceps is a basic, single-joint exercise for your front thigh muscles. It helps strengthen and stabilize your knees like nothing you’ve ever experienced. It has an easy access seat with adjustable leg and back pads for the most comfortable and advantageous position. Gives a good view of moving weight stacks while exercising.
 

Specification 

Length 65 in (165 cm) 
Width 65 in (166 cm) 
Height 59 in (150 cm) 
Weight 1123 lbs (510 kg)