500 gm each with 5 pcs, I with the hook..

(Fibre Glass Model)..

Gravesandes, ring mounted in rod with handle, ball with chain,Ball dia is 22mm..

Plastic Model..

AA- 4 dry cells(1.5V),AC supply..

specimens..

specimens..

3 pulleys set..

4 pulleys set..

..

Rubber/poly resistant to acids/ knee length..

Plastic, 300mm dia..

Pointed tip or round tip bristle, long and closely arranged bristle for details..

1.5 W..

3 W..