Spiral Soda Descriptive Pads are made of durable semi-rigid plastic material which can be used indoors and outdoors. 7" Spiral pads can be used with our 21" Spiral Boards. Soda Descriptive Pad is 3 3/4" wide and includes: 6 pack, 12 pack, 1 liter, 2 liter, 3 liter, 20 oz bottle. White with black text. Custom pads are available.