20 have their centers aligned with the center of the circular opening 14 the openings 18 20 are disposed parallel to one another in the weight 10 and equidistant to the circular opening 14 fig4 shows a cross sectional view of the invented weight 10 taken along the lines a a of fig2 the circular opening 14 has its inner periphery 15 perpendicular to the top and bottom surfaces of the weight 10 to aid in coupling the weight 10 to a barbell or dumbbell the generally rounded nature of the peripheral edge of the weight 10 and the rounded nature of the openings 18 20 enhances grasping of the weight 10 the contour applied to the inner surface of the weight 10 permits it to comformably mount about a portion of the human anatomy fig5 illustrates application of the contoured weight 10 to a human arm and use of a strap or belt 31 inserted through the openings 18 and 20 to hold the weight 10 in place fig6 illustrates the conveniently stackable nature of a number of identical weights 10 when using the weight 10 the fingers of the human hand may be placed through either elongated opening 18 20 and the thumb of the hand may be placed through the remaining opening 18 20 to grip the weight 10 by holding the weight 10 in this fashion exercises such as those usually performed with dumbbells may be performed the invented weight 10 may also be held by placing the fingers of the hand through the desired opening 18 20 and wrapping the thumb around the outer periphery 16 of the curved disc member 12.