Pulley - Force Table, Low Friction, Heavy Duty Metal Clamp Attaches Securely To Table Tops From 10 To 24 mm Thick And Pulley Runs Smoothly On Ball Bearing.
Super Wiggle-Bots - Doodling, Scribbling, Drawing, Racing Bots, Single, motorized contraptions designed and built by kids, widen as wires are connected and Wiggle-Bots start to move, understanding design through experimentation
Rectangular Block - Glass, Made from imported optical glass with optically worked surfaces, All angles accurately worked with edges slightly bevelled and glass free from bubbles, Size: 125 x 65 x 18 mm