Looks to be in good shape to me but I know nothing about the board or the sport. It's not water logged.
So my guess is it's vintage and pretty rare or desirable. Google it and and only saw a couple from some time ago. The item "Vintage BZ Pro Stinger Bodyboard with Ankle Strap RARE" is in sale since Friday, June 23, 2017.
This item is in the category "Sporting Goods\Water Sports\Surfing\Bodyboards". The seller is "bioncahinton88" and is located in New Rochelle, New York.
This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica.