THIS DESIGN ALLOWS YOU TO CHANGE THE LENSES IN A SIMPLE AND A FAST WAY, JUST BY UNSCREWING THE EXTERIOR PART OF THE FRAMES! ALONG WITH THE GOGGLES WE PROVIDE ONE PAIR OF LENSES. PLEASE, CHOOSE THE COLOR - CLEAR, GREEN, ORANGE, GRAY, BLUE, RED, BROWN. PLEASE MENTION THE DESIRED COLOR IN THE BUYERS NOTE AS YOU CHECKOUT, OTHERWISE WE WILL INSTALL LENSES OF THE DEFAULT COLOR, THAT IS SHOWN IN THE PICTURES ABOVE. IF YOU WISH TO PURCHASE ADDITIONAL LENSES ALONG WITH THE GOGGLES - PLEASE, LET US KNOW, AND WE WILL SEND YOU AN UPDATED INVOICE. EACH ADDITIONAL PAIR OF LENSES COSTS 5 USD. ____________________________________________________________ Good day to you, Ladies and Gentlemen. Our shop – “Mann & Co” – proudly presents a pair of solid brass goggles. These goggles are 100% handcrafted – unlike most of the goggles, that you see on Etsy, these aren’t made from spraypainted plastic welding\motorcycling\swimming goggles,brass plumbing parts, etc… All of our goggles are made from scratch. And when we say it – we mean it. These brass goggles are very comfortable and light, yet durable enough to serve you not only as a fashion accesory, but also as a real deal safety goggles. In fact, we wear goggles of this design while working in our workshop. They provide considerable protection against dust and metal particles, and you can wear them for hours without mention. Moreover, If you equip those with standard 50mm welding lenses, you get a nice welding goggles. Indeed, if you were looking for a goggles that are handcrafted from 100% authentic materials, and can also be used as a FUNCTIONAL gear - then look no further, since these goggles are the best choice.Here is the list, that provides you with all the required information about this fine product and it's properties: Frames: Inner parts – made of 1mm solid brass. Diameter - 50mm. Exterior parts - made of 1.5mm solid brass. Diameter - 53mm. The frame parts are connected via treading, while lense is hold in between. Exterior part can be unscrewed, allowing simple and fast lense change. Lenses – 50mm diameter lenses, made of 3mm perspex (provide UV protection). Any other 50mm lense will fit the frame, including standard glass lenses for welding goggles. Oculars – made of 2mm veg-tanned leather, finished with Feibing's "Atom Wax" to achieve additional smoothness and rich gloss. Padding rims - made of soft 1mm calfskin. The padding is handstitched to the oculars with waxed polyester thread. Strap – made of 2mm veg-tanned leather, finished with Feibing's "Atom Wax". The strap are 1.55 cm wide and long enough to fit even the largest head sizes and being worn over aviator caps or cylinder hats. Gears - authentic brass gears, made of 0.6mm brass sheet. Strap buckle and loop – classic "roll buckles" made of steel and anodized with brass. Very durable. Screws, nuts and studs – all solid brass. Threading is standard 1\8". ___________________________________________________________ WE SHIP WORLDWIDE We ship via Express Mail Service (EMS). Although being a bit expensive, it is relatively reliable, provides tracking information of the shipping progress. Shipping usually takes from 4 to 8 business days (very rarely more than 8 days). We ship in 1-3 days after recieving cleared payment (we usually ship on mondays and thursdays). If there is a need for an urgent shipping, please, do not hesitate to contact us. ____________________________________________________________ In addition to all this, we want to add some important notes. Practically, all our goggles are made of brass and leather (sometimes using mild steel, tin or copper rivets) – no "faux leather", no synthetics or plastic...The only un-authentic parts are perspex lenses and polyester threads – and this is only for the reasons of safety and reliability – we do not want shards of broken glass getting into the eyes of our clients, nor we want ocular padding falling apart after two or three years of usage. That’s why, it is not glass lenses and cotton thread, but perspex and polyester.