Strauss Thigh Exerciser, Black Material: Made of a spring-loaded steel core, covered with a soft foam. LIGHTWEIGHT EQUIPMENT - We made the thigh trimmer toner with iron and ABS plastic it is lightweight for secure storage and convenient use as a home gym workout equipment. SWEAT-ABSORBENT FOAM HANDLE - The handles come with a sweat-absorbent, soft foam padding, giving you a comfortable grip experience while protecting your safety MULTI-FUNCTIONAL WORKOUT - You can exercise this multi-functional designed thigh trainer for your arm, triceps & back, inner/outer thigh, and chest/shoulder; efficiently strengthen your muscles ENGAGE & TONE ENTIRE BODY - Exercise this thigh master your way to slimmer abs, legs, arms, thighs and more. Excellent exercise toner for the arm workout, leg workout, inner thigh exercise equipment