Material and finish 3 pcs beer bottle cap opener post mounted is made of heavy duty cast iron combines durability and practicality black powder coated finish Simple to use Simply insert the beer bottle into the cooler mounted bottle cap opener and flick to remove the cap wood board mounted beer cap opener keeps you from having to continuously look for a bottle opener Easy to install The table mounted beer bottle opener is easy to fix on a fence post or other nearby outdoor surface area Applicable occasion Ideal for all occasion this screw in wall beer bottle cap opener can be installed indoors as well as outdoors including garden fences or garages and is perfect for bars too Luwanburg suggest to use the mountable beer cap opener cast iron with black bottle cap collector to collect the bottle caps dropped from wall bottle opener