its for a balco speargun
Hello James, Thank you for your inquiry! We checked with Mares… Mares bands are the same as other bands and they believe that there are no problem using the Mares Latex Circular Band. http://www.scuba.com/scuba-gear-251/041291/Pure-Instinct-by-Mares-Latex-Circular-Band-19mm.html If you use bands with plastic screws, it’s better if you use the Mares wishbone, but usually the screw-on type is universal. Bands with Dyneema wishbone are same for all brands. The unique different is that Mares Dyneema wishbone are interchangeable with other style Dyneema bands. If you have any questions or wish to place an order, please call us at 1-800-.47-2822.