Med-Fit Systems 2009 Nautilus Nitro® Plus Biceps Curl The Nautilus Nitro® Plus Biceps Curl has a compound position design that places the arms in a raised position for full bicep contraction.     * Patented and innovative elevated humerus for optimal biceps contraction and user comfort     * Independent movement arms for a balanced workout     * Adjustable back pad provides precision axis alignment     * Supinated pivoting handles for varying forearm lengths and comfort     * UPDATE: The contoured seat has been upgraded with a higher density foam to      improve  the comfort and durability of the pad. The contours of the seat in the photo      above  may be different than the updated model.   Length    41" (109 cm)   Width                   45" (114 cm)      Height 57" (145 cm)   Machine Weight 478 lbs (217 kg)   Weight Stack 170 lbs (77 kg) Core Upper Body Lower Body 1.800.831.7665 1.800.831.7665