Features: 1Good corrosion resistance, high hardness, no deformation after long time of use. 2It has two functions, not only cue ball positioning, but also obstacle ball positioning. 3This locator is different from ordinary locator, can measure obstacle ball and accurately locate cue ball location. 4Professional cue ball positioning kit, indispensable locator for referees. 5Made of high quality plastic material, durable and long service life. Condition: 100% Brand New Item Type: Billiards Ball Position Location Material: Plastic Color: As Pictures Shown Size: Blocks: Approx.53x26x11mm/2.1x1x0.4in Semicircle:Approx.53x37x25mm/2.1x1.5x1in Weight: Approx. 37g/1.3oz Package Included: &nbsp1 x Block&nbspLocator&nbsp1 x&nbspSemicircle&nbspLocator