Material: plastic, Made of plastic, durable, wear-resistant and impact. Feature:The surface is smooth, good touch. Easy to use, economical and practical. Suitable for: Perfect for the placement of standard 2 1/4 inch size billiard balls. Can organzer 9 balls for preparation. Exquisite Details: the corners of these pool table accessories are reinforced to make the racks more durable to use; The edges adopt round process to help reduce the wear of your billiard table cloth when gliding across the table. Wide Applicable: you can apply the pool ball racks in home game room or pub billiard game; They are good billiard game accessories for you to enjoy the fun of game while keeping the billiard table in a good condition.