The dive site card set "Zwenkauer See" consists of a printed polystyrene plate with the dimensions of 183 x 127 x 1 mm.
In one corner there is a hole with a diameter of 5mm, so that several cards can be connected to the supplied stainless steel wire rope loop.
The labeling of the card is done in a direct printing process, which means that the font is water-resistant to the polystyrene plate. The back of the card is white, you can label it with a common pencil and delete it with an eraser.
The price of the card set it is 8,- Euro (plus 1,55 Euro shipping per order)