As an Amazon Associate, we earn from qualifying purchases. United Scientific Reflection & Refraction Tank – AmScope United Scientific . VUSC-RRT002 Gallery Attributes Brand name, Manufacturer name, ManufacturerUnited Scientific Extra Product NameUnited Scientific Reflection & Refraction Tank – AmScope moq, multiple, tierMinQty11 MPN, SKUVUSC-RRT002 qtyInStock-2 qtySourceFieldMap snippetThis product effectively demonstrates the laws of reflection and refraction. The 16cm diameter acrylic water tank has a 360 degree scale and a moveable arm carrying a laser activated by a push-button. Thumb screws on the side of the laser harness can be adjusted to finely position the laser beam. Requires two AAA batte tierPrice184.55 Distributor offers SellerSKUMOQIn stockMultiplePrices amscope.comVUSC-RRT0021-211 @ $84.55