These are printed on Dura-copy paper. It is tear resistant and 100% waterproof. These will not breakdown in quality while they are abused in your caving binder. 
 
Binder pages that review a series of effective sketching and communication steps. Backside has a printed compass in case you forget a compass. Back side also includes a backsight conversion table and high angle chart. 
 
Additinal customizations available, please reach out for more details. Survey steps can be easily updated for your teams best flow or for your type of survey.