WEAR RESISTANCE:Made of high quality resin material, with unique impact resistance and wear resistance. EASY TO PLAY:Players tend to place bets and control the standard lines and dots of the ball.High, middle and low practice points easy to master, trainer can master various lever methods quickly. LOW YEARLY TABLE COST: Smooth surface reduces drastically the table cloth wear resulting in far less cloth and ball replacement. FINE WORKMANSHIP:This is a Great training ball to improve you're skills,made of polyester resin.Fine workmanship, billiard ball calibrated and polished during practice. LIGHTWEIGHT AND PORTABLE:Small size and lightweight, easy to carry and store, convenient to use. Specification: Condition: 100% Brand New Item Type: Billiards Training Assistant Material: Resin Color: As Pictures Shown Suitable: English Snooker, Small American Ball Quantity: 1PCS Weight: Approx. 132g Diameter: Approx. 52mm/2.05inch Package List: 1 x Billiards Training Assistant