No more need for screws to attach the wing. The third major change we´ve made, is that we have made the shoulder straps narrower, for better comfort and fit. Available in two sizes: Standard (-M) and Large (L-) where the difference between the two sizes are the lenght of the waistbelt and the number of 40 cc holes (3 rows for Standard and 6 rows for Large).All of our Besea wings can be mounted on this harness. Ergonomic harness 40 cc system Fits most sizes Available in two sizes: Standard & Large. The item "Poseidon One Harness Red" is in sale since Thursday, September 20, 2018. This item is in the category "Sporting Goods\Water Sports\SCUBA & Snorkeling\Buoyancy Compensators". The seller is "jbarroso" and is located in Largo, Florida. 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, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Viet nam, Uruguay, Antigua and barbuda, Aruba, Belize, Bermuda, Ecuador, Egypt, Iceland, Jordan, Cayman islands, Sri lanka, Maldives, Oman, Peru, Reunion.