Wash Bottle, Unitary, are made of translucent and low density polyethylene, The distinguishing feature of these bottles is the built-in delivery tube which makes it a one-piece wash bottle, graduations on the outer surface to reflect an approximate volume of solution, Size: 250ml
Racing Rings consists of three rods one each of copper, aluminum and PVC, Ring magnet is dropped down the PVC rod, it falls unobstructed, Two metal rods create an induced magnetic field to that adds resistance to the rings travel, metals are different, they fall at different rates