Specifications:- Overall Dimension(LxWxH): 13 3/8"" x 7 1/16"" x 15 3/4"" (34 x 18 x 40 cm)- Wheel Size(Dia.): 12"" (30 cm)- Base Size(LxWxH): 10 1/4"" x 7 1/16"" x 1 3/8"" (26 x 18 x 3.5 cm)- Material: Pvc Foam Board with Acrylic Sheet, Pvc White Plate- Net Weight: 3 Lbs (1.35 kg). Package Contents:- 1x Wheel- 1x Base- 1x Supporting Rod- 1x White Cover Plate- 1x Middle Cover- 1x Marker Pen- 1x Eraser- 1x Rod Top Cover (for Education)- 1x Rod Top Cover (for Prize Game)- 1x Stopper- 2x Smile Face Stickers- 1 Set of Rope- 1 Set of Accessories- 1x Manual. Notice: - Water-based marker pens are recommended for acrylic boards for easier cleaning. If you use oil mark pens or pens of other types, it will be a little difficult to clean the board.