12-Piece Solid Brass Slotted Mass Set Glass Color_Transparent with plus-or-minus 10% nominal-value tolerance

with plus-or-minus 10% nominal-value tolerance

repeatable field strength across years of student handling

sized for side-by-side strength comparison against the chrome-steel cylindrical series of similar dimensions

Sheet-metal D battery holder for two D-cells with spring-loaded terminals and 4 mm banana plug outputs

Two-inch vinyl-coated fingers on this three-finger extension clamp mount to a swivel boss head fitting rods up to 18mm

12-Piece Solid Brass Slotted Mass Set Glass Color_Transparent with plus-or-minus 10% nominal-value toleranceTwelve piece brass slotted mass set spanning 1 to 500 grams, stackable on a slotted hanger for fine grained force and mechanical advantage investigations with a 1110 gram total capacity.