Features: *100% brand new and high quality *Made of high quality material, durable and practical to use *Steel ball bearing: Let the roller slide smoothly across the table surface *Plastic coating: The outer plastic coating ensures that these steel balls fall off *A must for indoor games *Applicable: Shuffleboard, table football Specifications: *Material: Plastic + Iron *Optional Color:red/blue(As Pictures Show) *Size:encapsulation diameter 23mm (about 0.9in) / steel ball diameter 14mm (about 0.5in) *Weight:13g(Approx.) *Quantity: 4 pc Package Contents: 4/8*Roller Balls (opt) Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.